Finding the Fourth Proportional to 72,553.43, 108,872.18 and 30,429.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,553.43 : 108,872.18 = 30,429.76 : x
2. Step 2: Convert to fraction form
   72,553.43/108,872.18 = 30,429.76/x
3. Step 3: Cross multiply
   72,553.43x = 108,872.18 × 30,429.76
4. Step 4: Simplify right side
   72,553.43x = 3,312,954,308.08
5. Step 5: Solve for x
   x = 3,312,954,308.08/72,553.43
6. Step 6: Final answer
   x = 45,662.27