Finding the Fourth Proportional to 12,326.18, 18,498.86 and 8,604.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,326.18 : 18,498.86 = 8,604.24 : x
2. Step 2: Convert to fraction form
   12,326.18/18,498.86 = 8,604.24/x
3. Step 3: Cross multiply
   12,326.18x = 18,498.86 × 8,604.24
4. Step 4: Simplify right side
   12,326.18x = 159,168,631.17
5. Step 5: Solve for x
   x = 159,168,631.17/12,326.18
6. Step 6: Final answer
   x = 12,913.05