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Finding the Fourth Proportional to 16,917.57, 25,361.78 and 8,158.64

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Solution

The fourth proportional to 16,917.57, 25,361.78 and 8,158.64 is: 12,230.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,917.57 : 25,361.78 = 8,158.64 : x
  2. Step 2: Convert to fraction form
    16,917.57/25,361.78 = 8,158.64/x
  3. Step 3: Cross multiply
    16,917.57x = 25,361.78 × 8,158.64
  4. Step 4: Simplify right side
    16,917.57x = 206,917,465.18
  5. Step 5: Solve for x
    x = 206,917,465.18/16,917.57
  6. Step 6: Final answer
    x = 12,230.92

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