Finding the Fourth Proportional to 123,892.83, 170,957.58 and 72,894.35

Step by Step Solution

1. Step 1: Write the proportion equation
   123,892.83 : 170,957.58 = 72,894.35 : x
2. Step 2: Convert to fraction form
   123,892.83/170,957.58 = 72,894.35/x
3. Step 3: Cross multiply
   123,892.83x = 170,957.58 × 72,894.35
4. Step 4: Simplify right side
   123,892.83x = 12,461,840,816.89
5. Step 5: Solve for x
   x = 12,461,840,816.89/123,892.83
6. Step 6: Final answer
   x = 100,585.65