Finding the Fourth Proportional to 53,500.50, 73,818.02 and 31,685.78

Step by Step Solution

1. Step 1: Write the proportion equation
   53,500.50 : 73,818.02 = 31,685.78 : x
2. Step 2: Convert to fraction form
   53,500.50/73,818.02 = 31,685.78/x
3. Step 3: Cross multiply
   53,500.50x = 73,818.02 × 31,685.78
4. Step 4: Simplify right side
   53,500.50x = 2,338,981,805.52
5. Step 5: Solve for x
   x = 2,338,981,805.52/53,500.50
6. Step 6: Final answer
   x = 43,718.88