Finding the Fourth Proportional to 131,977.72, 182,081.52 and 86,680.24

Step by Step Solution

1. Step 1: Write the proportion equation
   131,977.72 : 182,081.52 = 86,680.24 : x
2. Step 2: Convert to fraction form
   131,977.72/182,081.52 = 86,680.24/x
3. Step 3: Cross multiply
   131,977.72x = 182,081.52 × 86,680.24
4. Step 4: Simplify right side
   131,977.72x = 15,782,869,853.16
5. Step 5: Solve for x
   x = 15,782,869,853.16/131,977.72
6. Step 6: Final answer
   x = 119,587.38