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Finding the Fourth Proportional to 18,681.92, 25,780.02 and 11,608.28

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Solution

The fourth proportional to 18,681.92, 25,780.02 and 11,608.28 is: 16,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.92 : 25,780.02 = 11,608.28 : x
  2. Step 2: Convert to fraction form
    18,681.92/25,780.02 = 11,608.28/x
  3. Step 3: Cross multiply
    18,681.92x = 25,780.02 × 11,608.28
  4. Step 4: Simplify right side
    18,681.92x = 299,261,690.57
  5. Step 5: Solve for x
    x = 299,261,690.57/18,681.92
  6. Step 6: Final answer
    x = 16,018.79

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