Finding the Fourth Proportional to 8,484.31, 12,727.59 and 3,552.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,484.31 : 12,727.59 = 3,552.78 : x
2. Step 2: Convert to fraction form
   8,484.31/12,727.59 = 3,552.78/x
3. Step 3: Cross multiply
   8,484.31x = 12,727.59 × 3,552.78
4. Step 4: Simplify right side
   8,484.31x = 45,218,327.20
5. Step 5: Solve for x
   x = 45,218,327.20/8,484.31
6. Step 6: Final answer
   x = 5,329.64