Finding the Fourth Proportional to 72,380.57, 108,694.17 and 47,123.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,380.57 : 108,694.17 = 47,123.10 : x
2. Step 2: Convert to fraction form
   72,380.57/108,694.17 = 47,123.10/x
3. Step 3: Cross multiply
   72,380.57x = 108,694.17 × 47,123.10
4. Step 4: Simplify right side
   72,380.57x = 5,122,006,242.33
5. Step 5: Solve for x
   x = 5,122,006,242.33/72,380.57
6. Step 6: Final answer
   x = 70,764.94