Finding the Fourth Proportional to 12,124.17, 18,167.69 and 8,160.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,124.17 : 18,167.69 = 8,160.77 : x
2. Step 2: Convert to fraction form
   12,124.17/18,167.69 = 8,160.77/x
3. Step 3: Cross multiply
   12,124.17x = 18,167.69 × 8,160.77
4. Step 4: Simplify right side
   12,124.17x = 148,262,298.72
5. Step 5: Solve for x
   x = 148,262,298.72/12,124.17
6. Step 6: Final answer
   x = 12,228.66