Finding the Fourth Proportional to 157,957.91, 236,978.42 and 56,766.18

Step by Step Solution

1. Step 1: Write the proportion equation
   157,957.91 : 236,978.42 = 56,766.18 : x
2. Step 2: Convert to fraction form
   157,957.91/236,978.42 = 56,766.18/x
3. Step 3: Cross multiply
   157,957.91x = 236,978.42 × 56,766.18
4. Step 4: Simplify right side
   157,957.91x = 13,452,359,362.00
5. Step 5: Solve for x
   x = 13,452,359,362.00/157,957.91
6. Step 6: Final answer
   x = 85,164.20