Finding the Fourth Proportional to 52,687.31, 72,713.33 and 31,466.12

Step by Step Solution

1. Step 1: Write the proportion equation
   52,687.31 : 72,713.33 = 31,466.12 : x
2. Step 2: Convert to fraction form
   52,687.31/72,713.33 = 31,466.12/x
3. Step 3: Cross multiply
   52,687.31x = 72,713.33 × 31,466.12
4. Step 4: Simplify right side
   52,687.31x = 2,288,005,964.48
5. Step 5: Solve for x
   x = 2,288,005,964.48/52,687.31
6. Step 6: Final answer
   x = 43,426.13