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Finding the Fourth Proportional to 12,236.99, 18,357.30 and 3,916.26

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Solution

The fourth proportional to 12,236.99, 18,357.30 and 3,916.26 is: 5,874.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.99 : 18,357.30 = 3,916.26 : x
  2. Step 2: Convert to fraction form
    12,236.99/18,357.30 = 3,916.26/x
  3. Step 3: Cross multiply
    12,236.99x = 18,357.30 × 3,916.26
  4. Step 4: Simplify right side
    12,236.99x = 71,891,959.70
  5. Step 5: Solve for x
    x = 71,891,959.70/12,236.99
  6. Step 6: Final answer
    x = 5,874.97

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