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Finding the Fourth Proportional to 10,655.96, 15,960.71 and 8,786.07

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Solution

The fourth proportional to 10,655.96, 15,960.71 and 8,786.07 is: 13,159.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.96 : 15,960.71 = 8,786.07 : x
  2. Step 2: Convert to fraction form
    10,655.96/15,960.71 = 8,786.07/x
  3. Step 3: Cross multiply
    10,655.96x = 15,960.71 × 8,786.07
  4. Step 4: Simplify right side
    10,655.96x = 140,231,937.27
  5. Step 5: Solve for x
    x = 140,231,937.27/10,655.96
  6. Step 6: Final answer
    x = 13,159.96

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