Finding the Fourth Proportional to 8,516.56, 12,778.20 and 5,594.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,516.56 : 12,778.20 = 5,594.32 : x
2. Step 2: Convert to fraction form
   8,516.56/12,778.20 = 5,594.32/x
3. Step 3: Cross multiply
   8,516.56x = 12,778.20 × 5,594.32
4. Step 4: Simplify right side
   8,516.56x = 71,485,339.82
5. Step 5: Solve for x
   x = 71,485,339.82/8,516.56
6. Step 6: Final answer
   x = 8,393.69