Finding the Fourth Proportional to 80,441.16, 111,018.96 and 52,869.12

Step by Step Solution

1. Step 1: Write the proportion equation
   80,441.16 : 111,018.96 = 52,869.12 : x
2. Step 2: Convert to fraction form
   80,441.16/111,018.96 = 52,869.12/x
3. Step 3: Cross multiply
   80,441.16x = 111,018.96 × 52,869.12
4. Step 4: Simplify right side
   80,441.16x = 5,869,474,718.52
5. Step 5: Solve for x
   x = 5,869,474,718.52/80,441.16
6. Step 6: Final answer
   x = 72,966.06