Finding the Fourth Proportional to 13,124.64, 18,107.46 and 8,411.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,124.64 : 18,107.46 = 8,411.52 : x
2. Step 2: Convert to fraction form
   13,124.64/18,107.46 = 8,411.52/x
3. Step 3: Cross multiply
   13,124.64x = 18,107.46 × 8,411.52
4. Step 4: Simplify right side
   13,124.64x = 152,311,261.94
5. Step 5: Solve for x
   x = 152,311,261.94/13,124.64
6. Step 6: Final answer
   x = 11,604.99