Finding the Fourth Proportional to 12,498.20, 18,734.24 and 5,916.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,498.20 : 18,734.24 = 5,916.56 : x
2. Step 2: Convert to fraction form
   12,498.20/18,734.24 = 5,916.56/x
3. Step 3: Cross multiply
   12,498.20x = 18,734.24 × 5,916.56
4. Step 4: Simplify right side
   12,498.20x = 110,842,255.01
5. Step 5: Solve for x
   x = 110,842,255.01/12,498.20
6. Step 6: Final answer
   x = 8,868.66