Finding the Fourth Proportional to 132,155.15, 182,377.42 and 71,728.34

Step by Step Solution

1. Step 1: Write the proportion equation
   132,155.15 : 182,377.42 = 71,728.34 : x
2. Step 2: Convert to fraction form
   132,155.15/182,377.42 = 71,728.34/x
3. Step 3: Cross multiply
   132,155.15x = 182,377.42 × 71,728.34
4. Step 4: Simplify right side
   132,155.15x = 13,081,628,498.87
5. Step 5: Solve for x
   x = 13,081,628,498.87/132,155.15
6. Step 6: Final answer
   x = 98,986.90