Finding the Fourth Proportional to 131,596.16, 197,469.48 and 55,688.72

Step by Step Solution

1. Step 1: Write the proportion equation
   131,596.16 : 197,469.48 = 55,688.72 : x
2. Step 2: Convert to fraction form
   131,596.16/197,469.48 = 55,688.72/x
3. Step 3: Cross multiply
   131,596.16x = 197,469.48 × 55,688.72
4. Step 4: Simplify right side
   131,596.16x = 10,996,822,580.27
5. Step 5: Solve for x
   x = 10,996,822,580.27/131,596.16
6. Step 6: Final answer
   x = 83,564.92