Finding the Fourth Proportional to 147,651.30, 221,331.15 and 72,710.10

Step by Step Solution

1. Step 1: Write the proportion equation
   147,651.30 : 221,331.15 = 72,710.10 : x
2. Step 2: Convert to fraction form
   147,651.30/221,331.15 = 72,710.10/x
3. Step 3: Cross multiply
   147,651.30x = 221,331.15 × 72,710.10
4. Step 4: Simplify right side
   147,651.30x = 16,093,010,049.62
5. Step 5: Solve for x
   x = 16,093,010,049.62/147,651.30
6. Step 6: Final answer
   x = 108,993.35