Finding the Fourth Proportional to 72,081.62, 108,142.16 and 34,672.99

Step by Step Solution

1. Step 1: Write the proportion equation
   72,081.62 : 108,142.16 = 34,672.99 : x
2. Step 2: Convert to fraction form
   72,081.62/108,142.16 = 34,672.99/x
3. Step 3: Cross multiply
   72,081.62x = 108,142.16 × 34,672.99
4. Step 4: Simplify right side
   72,081.62x = 3,749,611,761.90
5. Step 5: Solve for x
   x = 3,749,611,761.90/72,081.62
6. Step 6: Final answer
   x = 52,018.97