Finding the Fourth Proportional to 8,247.59, 12,369.49 and 4,916.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,247.59 : 12,369.49 = 4,916.78 : x
2. Step 2: Convert to fraction form
   8,247.59/12,369.49 = 4,916.78/x
3. Step 3: Cross multiply
   8,247.59x = 12,369.49 × 4,916.78
4. Step 4: Simplify right side
   8,247.59x = 60,818,122.66
5. Step 5: Solve for x
   x = 60,818,122.66/8,247.59
6. Step 6: Final answer
   x = 7,374.04