Finding the Fourth Proportional to 131,571.72, 197,073.27 and 69,111

Step by Step Solution

1. Step 1: Write the proportion equation
   131,571.72 : 197,073.27 = 69,111 : x
2. Step 2: Convert to fraction form
   131,571.72/197,073.27 = 69,111/x
3. Step 3: Cross multiply
   131,571.72x = 197,073.27 × 69,111
4. Step 4: Simplify right side
   131,571.72x = 13,619,930,762.97
5. Step 5: Solve for x
   x = 13,619,930,762.97/131,571.72
6. Step 6: Final answer
   x = 103,517.16