Finding the Fourth Proportional to 57,123.83, 78,833.36 and 31,630.20

Step by Step Solution

1. Step 1: Write the proportion equation
   57,123.83 : 78,833.36 = 31,630.20 : x
2. Step 2: Convert to fraction form
   57,123.83/78,833.36 = 31,630.20/x
3. Step 3: Cross multiply
   57,123.83x = 78,833.36 × 31,630.20
4. Step 4: Simplify right side
   57,123.83x = 2,493,514,771.40
5. Step 5: Solve for x
   x = 2,493,514,771.40/57,123.83
6. Step 6: Final answer
   x = 43,651.04