Finding the Fourth Proportional to 72,174.09, 108,306.25 and 34,738.12

Step by Step Solution

1. Step 1: Write the proportion equation
   72,174.09 : 108,306.25 = 34,738.12 : x
2. Step 2: Convert to fraction form
   72,174.09/108,306.25 = 34,738.12/x
3. Step 3: Cross multiply
   72,174.09x = 108,306.25 × 34,738.12
4. Step 4: Simplify right side
   72,174.09x = 3,762,355,557.79
5. Step 5: Solve for x
   x = 3,762,355,557.79/72,174.09
6. Step 6: Final answer
   x = 52,128.89