Finding the Fourth Proportional to 131,597.16, 197,470.98 and 55,689.72

Step by Step Solution

1. Step 1: Write the proportion equation
   131,597.16 : 197,470.98 = 55,689.72 : x
2. Step 2: Convert to fraction form
   131,597.16/197,470.98 = 55,689.72/x
3. Step 3: Cross multiply
   131,597.16x = 197,470.98 × 55,689.72
4. Step 4: Simplify right side
   131,597.16x = 10,997,103,584.33
5. Step 5: Solve for x
   x = 10,997,103,584.33/131,597.16
6. Step 6: Final answer
   x = 83,566.42