Finding the Fourth Proportional to 8,738.61, 12,057.30 and 7,327.99

Step by Step Solution

1. Step 1: Write the proportion equation
   8,738.61 : 12,057.30 = 7,327.99 : x
2. Step 2: Convert to fraction form
   8,738.61/12,057.30 = 7,327.99/x
3. Step 3: Cross multiply
   8,738.61x = 12,057.30 × 7,327.99
4. Step 4: Simplify right side
   8,738.61x = 88,355,773.83
5. Step 5: Solve for x
   x = 88,355,773.83/8,738.61
6. Step 6: Final answer
   x = 10,110.96