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Finding the Fourth Proportional to 31,254.66, 46,882.20 and 12,786.66

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Solution

The fourth proportional to 31,254.66, 46,882.20 and 12,786.66 is: 19,180.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,254.66 : 46,882.20 = 12,786.66 : x
  2. Step 2: Convert to fraction form
    31,254.66/46,882.20 = 12,786.66/x
  3. Step 3: Cross multiply
    31,254.66x = 46,882.20 × 12,786.66
  4. Step 4: Simplify right side
    31,254.66x = 599,466,751.45
  5. Step 5: Solve for x
    x = 599,466,751.45/31,254.66
  6. Step 6: Final answer
    x = 19,180.08

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