Finding the Fourth Proportional to 132,069.96, 182,255.76 and 71,640.72

Step by Step Solution

1. Step 1: Write the proportion equation
   132,069.96 : 182,255.76 = 71,640.72 : x
2. Step 2: Convert to fraction form
   132,069.96/182,255.76 = 71,640.72/x
3. Step 3: Cross multiply
   132,069.96x = 182,255.76 × 71,640.72
4. Step 4: Simplify right side
   132,069.96x = 13,056,933,870.55
5. Step 5: Solve for x
   x = 13,056,933,870.55/132,069.96
6. Step 6: Final answer
   x = 98,863.77