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Finding the Fourth Proportional to 10,892.96, 16,328.64 and 4,315.04

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Solution

The fourth proportional to 10,892.96, 16,328.64 and 4,315.04 is: 6,468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,892.96 : 16,328.64 = 4,315.04 : x
  2. Step 2: Convert to fraction form
    10,892.96/16,328.64 = 4,315.04/x
  3. Step 3: Cross multiply
    10,892.96x = 16,328.64 × 4,315.04
  4. Step 4: Simplify right side
    10,892.96x = 70,458,734.75
  5. Step 5: Solve for x
    x = 70,458,734.75/10,892.96
  6. Step 6: Final answer
    x = 6,468.28

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