Finding the Fourth Proportional to 12,292.54, 18,436.38 and 4,498.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,292.54 : 18,436.38 = 4,498.72 : x
2. Step 2: Convert to fraction form
   12,292.54/18,436.38 = 4,498.72/x
3. Step 3: Cross multiply
   12,292.54x = 18,436.38 × 4,498.72
4. Step 4: Simplify right side
   12,292.54x = 82,940,111.43
5. Step 5: Solve for x
   x = 82,940,111.43/12,292.54
6. Step 6: Final answer
   x = 6,747.19