Finding the Fourth Proportional to 52,713.37, 72,737.27 and 31,488.13

Step by Step Solution

1. Step 1: Write the proportion equation
   52,713.37 : 72,737.27 = 31,488.13 : x
2. Step 2: Convert to fraction form
   52,713.37/72,737.27 = 31,488.13/x
3. Step 3: Cross multiply
   52,713.37x = 72,737.27 × 31,488.13
4. Step 4: Simplify right side
   52,713.37x = 2,290,360,613.61
5. Step 5: Solve for x
   x = 2,290,360,613.61/52,713.37
6. Step 6: Final answer
   x = 43,449.33