Finding the Fourth Proportional to 57,033.31, 78,703.71 and 31,538.02

Step by Step Solution

1. Step 1: Write the proportion equation
   57,033.31 : 78,703.71 = 31,538.02 : x
2. Step 2: Convert to fraction form
   57,033.31/78,703.71 = 31,538.02/x
3. Step 3: Cross multiply
   57,033.31x = 78,703.71 × 31,538.02
4. Step 4: Simplify right side
   57,033.31x = 2,482,159,180.05
5. Step 5: Solve for x
   x = 2,482,159,180.05/57,033.31
6. Step 6: Final answer
   x = 43,521.22