Finding the Fourth Proportional to 13,124.14, 18,106.77 and 8,411.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,124.14 : 18,106.77 = 8,411.02 : x
2. Step 2: Convert to fraction form
   13,124.14/18,106.77 = 8,411.02/x
3. Step 3: Cross multiply
   13,124.14x = 18,106.77 × 8,411.02
4. Step 4: Simplify right side
   13,124.14x = 152,296,404.61
5. Step 5: Solve for x
   x = 152,296,404.61/13,124.14
6. Step 6: Final answer
   x = 11,604.30