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Finding the Fourth Proportional to 26,936.20, 40,398.54 and 8,458.12

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Solution

The fourth proportional to 26,936.20, 40,398.54 and 8,458.12 is: 12,685.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,936.20 : 40,398.54 = 8,458.12 : x
  2. Step 2: Convert to fraction form
    26,936.20/40,398.54 = 8,458.12/x
  3. Step 3: Cross multiply
    26,936.20x = 40,398.54 × 8,458.12
  4. Step 4: Simplify right side
    26,936.20x = 341,695,699.14
  5. Step 5: Solve for x
    x = 341,695,699.14/26,936.20
  6. Step 6: Final answer
    x = 12,685.37

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