Finding the Fourth Proportional to 8,312.56, 12,471.54 and 5,550.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,312.56 : 12,471.54 = 5,550.46 : x
2. Step 2: Convert to fraction form
   8,312.56/12,471.54 = 5,550.46/x
3. Step 3: Cross multiply
   8,312.56x = 12,471.54 × 5,550.46
4. Step 4: Simplify right side
   8,312.56x = 69,222,783.91
5. Step 5: Solve for x
   x = 69,222,783.91/8,312.56
6. Step 6: Final answer
   x = 8,327.49