Finding the Fourth Proportional to 86,404.32, 129,528.72 and 44,724.96

Step by Step Solution

1. Step 1: Write the proportion equation
   86,404.32 : 129,528.72 = 44,724.96 : x
2. Step 2: Convert to fraction form
   86,404.32/129,528.72 = 44,724.96/x
3. Step 3: Cross multiply
   86,404.32x = 129,528.72 × 44,724.96
4. Step 4: Simplify right side
   86,404.32x = 5,793,166,820.85
5. Step 5: Solve for x
   x = 5,793,166,820.85/86,404.32
6. Step 6: Final answer
   x = 67,047.19