Finding the Fourth Proportional to 131,081.65, 196,589.88 and 56,193.31

Step by Step Solution

1. Step 1: Write the proportion equation
   131,081.65 : 196,589.88 = 56,193.31 : x
2. Step 2: Convert to fraction form
   131,081.65/196,589.88 = 56,193.31/x
3. Step 3: Cross multiply
   131,081.65x = 196,589.88 × 56,193.31
4. Step 4: Simplify right side
   131,081.65x = 11,047,036,069.70
5. Step 5: Solve for x
   x = 11,047,036,069.70/131,081.65
6. Step 6: Final answer
   x = 84,275.99