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Finding the Fourth Proportional to 57,568.43, 86,355.72 and 18,128.62

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Solution

The fourth proportional to 57,568.43, 86,355.72 and 18,128.62 is: 27,193.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,568.43 : 86,355.72 = 18,128.62 : x
  2. Step 2: Convert to fraction form
    57,568.43/86,355.72 = 18,128.62/x
  3. Step 3: Cross multiply
    57,568.43x = 86,355.72 × 18,128.62
  4. Step 4: Simplify right side
    57,568.43x = 1,565,510,140.65
  5. Step 5: Solve for x
    x = 1,565,510,140.65/57,568.43
  6. Step 6: Final answer
    x = 27,193.90

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