Finding the Fourth Proportional to 92,957.08, 139,410.72 and 40,354.06

Step by Step Solution

1. Step 1: Write the proportion equation
   92,957.08 : 139,410.72 = 40,354.06 : x
2. Step 2: Convert to fraction form
   92,957.08/139,410.72 = 40,354.06/x
3. Step 3: Cross multiply
   92,957.08x = 139,410.72 × 40,354.06
4. Step 4: Simplify right side
   92,957.08x = 5,625,788,559.52
5. Step 5: Solve for x
   x = 5,625,788,559.52/92,957.08
6. Step 6: Final answer
   x = 60,520.28