Finding the Fourth Proportional to 57,141.48, 78,851.30 and 31,646.01

Step by Step Solution

1. Step 1: Write the proportion equation
   57,141.48 : 78,851.30 = 31,646.01 : x
2. Step 2: Convert to fraction form
   57,141.48/78,851.30 = 31,646.01/x
3. Step 3: Cross multiply
   57,141.48x = 78,851.30 × 31,646.01
4. Step 4: Simplify right side
   57,141.48x = 2,495,328,870.08
5. Step 5: Solve for x
   x = 2,495,328,870.08/57,141.48
6. Step 6: Final answer
   x = 43,669.31