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Finding the Fourth Proportional to 25,865.91, 38,766.40 and 11,057.42

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Solution

The fourth proportional to 25,865.91, 38,766.40 and 11,057.42 is: 16,572.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,865.91 : 38,766.40 = 11,057.42 : x
  2. Step 2: Convert to fraction form
    25,865.91/38,766.40 = 11,057.42/x
  3. Step 3: Cross multiply
    25,865.91x = 38,766.40 × 11,057.42
  4. Step 4: Simplify right side
    25,865.91x = 428,656,435.96
  5. Step 5: Solve for x
    x = 428,656,435.96/25,865.91
  6. Step 6: Final answer
    x = 16,572.25

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