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Finding the Fourth Proportional to 30,463.52, 42,042.72 and 17,720.64

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Solution

The fourth proportional to 30,463.52, 42,042.72 and 17,720.64 is: 24,456.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,463.52 : 42,042.72 = 17,720.64 : x
  2. Step 2: Convert to fraction form
    30,463.52/42,042.72 = 17,720.64/x
  3. Step 3: Cross multiply
    30,463.52x = 42,042.72 × 17,720.64
  4. Step 4: Simplify right side
    30,463.52x = 745,023,905.74
  5. Step 5: Solve for x
    x = 745,023,905.74/30,463.52
  6. Step 6: Final answer
    x = 24,456.26

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