Finding the Fourth Proportional to 8,411.79, 12,601.27 and 5,116.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,411.79 : 12,601.27 = 5,116.71 : x
2. Step 2: Convert to fraction form
   8,411.79/12,601.27 = 5,116.71/x
3. Step 3: Cross multiply
   8,411.79x = 12,601.27 × 5,116.71
4. Step 4: Simplify right side
   8,411.79x = 64,477,097.87
5. Step 5: Solve for x
   x = 64,477,097.87/8,411.79
6. Step 6: Final answer
   x = 7,665.08