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Finding the Fourth Proportional to 285,763.52, 428,456.16 and 127,774.40

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Solution

The fourth proportional to 285,763.52, 428,456.16 and 127,774.40 is: 191,577.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,763.52 : 428,456.16 = 127,774.40 : x
  2. Step 2: Convert to fraction form
    285,763.52/428,456.16 = 127,774.40/x
  3. Step 3: Cross multiply
    285,763.52x = 428,456.16 × 127,774.40
  4. Step 4: Simplify right side
    285,763.52x = 54,745,728,770.30
  5. Step 5: Solve for x
    x = 54,745,728,770.30/285,763.52
  6. Step 6: Final answer
    x = 191,577.04

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