Finding the Fourth Proportional to 13,155.52, 18,151.37 and 8,446.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,155.52 : 18,151.37 = 8,446.18 : x
2. Step 2: Convert to fraction form
   13,155.52/18,151.37 = 8,446.18/x
3. Step 3: Cross multiply
   13,155.52x = 18,151.37 × 8,446.18
4. Step 4: Simplify right side
   13,155.52x = 153,309,696.04
5. Step 5: Solve for x
   x = 153,309,696.04/13,155.52
6. Step 6: Final answer
   x = 11,653.64