Finding the Fourth Proportional to 123,517.02, 170,454.83 and 72,530.36

Step by Step Solution

1. Step 1: Write the proportion equation
   123,517.02 : 170,454.83 = 72,530.36 : x
2. Step 2: Convert to fraction form
   123,517.02/170,454.83 = 72,530.36/x
3. Step 3: Cross multiply
   123,517.02x = 170,454.83 × 72,530.36
4. Step 4: Simplify right side
   123,517.02x = 12,363,149,607.92
5. Step 5: Solve for x
   x = 12,363,149,607.92/123,517.02
6. Step 6: Final answer
   x = 100,092.68