Finding the Fourth Proportional to 57,143.48, 78,854.05 and 31,648.01

Step by Step Solution

1. Step 1: Write the proportion equation
   57,143.48 : 78,854.05 = 31,648.01 : x
2. Step 2: Convert to fraction form
   57,143.48/78,854.05 = 31,648.01/x
3. Step 3: Cross multiply
   57,143.48x = 78,854.05 × 31,648.01
4. Step 4: Simplify right side
   57,143.48x = 2,495,573,762.94
5. Step 5: Solve for x
   x = 2,495,573,762.94/57,143.48
6. Step 6: Final answer
   x = 43,672.06