Finding the Fourth Proportional to 13,159.43, 18,160.42 and 7,494.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,159.43 : 18,160.42 = 7,494.02 : x
2. Step 2: Convert to fraction form
   13,159.43/18,160.42 = 7,494.02/x
3. Step 3: Cross multiply
   13,159.43x = 18,160.42 × 7,494.02
4. Step 4: Simplify right side
   13,159.43x = 136,094,550.69
5. Step 5: Solve for x
   x = 136,094,550.69/13,159.43
6. Step 6: Final answer
   x = 10,341.98