Finding the Fourth Proportional to 131,123.31, 196,685.20 and 56,194.86

Step by Step Solution

1. Step 1: Write the proportion equation
   131,123.31 : 196,685.20 = 56,194.86 : x
2. Step 2: Convert to fraction form
   131,123.31/196,685.20 = 56,194.86/x
3. Step 3: Cross multiply
   131,123.31x = 196,685.20 × 56,194.86
4. Step 4: Simplify right side
   131,123.31x = 11,052,697,769.79
5. Step 5: Solve for x
   x = 11,052,697,769.79/131,123.31
6. Step 6: Final answer
   x = 84,292.40