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Finding the Fourth Proportional to 26,931.75, 40,405.31 and 9,166.31

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Solution

The fourth proportional to 26,931.75, 40,405.31 and 9,166.31 is: 13,752.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,931.75 : 40,405.31 = 9,166.31 : x
  2. Step 2: Convert to fraction form
    26,931.75/40,405.31 = 9,166.31/x
  3. Step 3: Cross multiply
    26,931.75x = 40,405.31 × 9,166.31
  4. Step 4: Simplify right side
    26,931.75x = 370,367,349.25
  5. Step 5: Solve for x
    x = 370,367,349.25/26,931.75
  6. Step 6: Final answer
    x = 13,752.07

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