Finding the Fourth Proportional to 80,411.94, 111,006.57 and 53,599.14

Step by Step Solution

1. Step 1: Write the proportion equation
   80,411.94 : 111,006.57 = 53,599.14 : x
2. Step 2: Convert to fraction form
   80,411.94/111,006.57 = 53,599.14/x
3. Step 3: Cross multiply
   80,411.94x = 111,006.57 × 53,599.14
4. Step 4: Simplify right side
   80,411.94x = 5,949,856,686.35
5. Step 5: Solve for x
   x = 5,949,856,686.35/80,411.94
6. Step 6: Final answer
   x = 73,992.20