Finding the Fourth Proportional to 123,331.58, 170,179.34 and 72,325.07

Step by Step Solution

1. Step 1: Write the proportion equation
   123,331.58 : 170,179.34 = 72,325.07 : x
2. Step 2: Convert to fraction form
   123,331.58/170,179.34 = 72,325.07/x
3. Step 3: Cross multiply
   123,331.58x = 170,179.34 × 72,325.07
4. Step 4: Simplify right side
   123,331.58x = 12,308,231,465.53
5. Step 5: Solve for x
   x = 12,308,231,465.53/123,331.58
6. Step 6: Final answer
   x = 99,797.89