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Finding the Fourth Proportional to 26,978, 40,474.20 and 8,510

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Solution

The fourth proportional to 26,978, 40,474.20 and 8,510 is: 12,767.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,978 : 40,474.20 = 8,510 : x
  2. Step 2: Convert to fraction form
    26,978/40,474.20 = 8,510/x
  3. Step 3: Cross multiply
    26,978x = 40,474.20 × 8,510
  4. Step 4: Simplify right side
    26,978x = 344,435,442
  5. Step 5: Solve for x
    x = 344,435,442/26,978
  6. Step 6: Final answer
    x = 12,767.27

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