Finding the Fourth Proportional to 12,104.88, 18,159.46 and 5,531.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,104.88 : 18,159.46 = 5,531.74 : x
2. Step 2: Convert to fraction form
   12,104.88/18,159.46 = 5,531.74/x
3. Step 3: Cross multiply
   12,104.88x = 18,159.46 × 5,531.74
4. Step 4: Simplify right side
   12,104.88x = 100,453,411.26
5. Step 5: Solve for x
   x = 100,453,411.26/12,104.88
6. Step 6: Final answer
   x = 8,298.59