Finding the Fourth Proportional to 131,123.27, 180,978.77 and 83,367.29

Step by Step Solution

1. Step 1: Write the proportion equation
   131,123.27 : 180,978.77 = 83,367.29 : x
2. Step 2: Convert to fraction form
   131,123.27/180,978.77 = 83,367.29/x
3. Step 3: Cross multiply
   131,123.27x = 180,978.77 × 83,367.29
4. Step 4: Simplify right side
   131,123.27x = 15,087,709,602.43
5. Step 5: Solve for x
   x = 15,087,709,602.43/131,123.27
6. Step 6: Final answer
   x = 115,065.08