Finding the Fourth Proportional to 123,892.58, 170,957.25 and 72,894.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,892.58 : 170,957.25 = 72,894.10 : x
2. Step 2: Convert to fraction form
   123,892.58/170,957.25 = 72,894.10/x
3. Step 3: Cross multiply
   123,892.58x = 170,957.25 × 72,894.10
4. Step 4: Simplify right side
   123,892.58x = 12,461,774,877.23
5. Step 5: Solve for x
   x = 12,461,774,877.23/123,892.58
6. Step 6: Final answer
   x = 100,585.32