Finding the Fourth Proportional to 12,577.61, 17,359.94 and 8,328.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,577.61 : 17,359.94 = 8,328.83 : x
2. Step 2: Convert to fraction form
   12,577.61/17,359.94 = 8,328.83/x
3. Step 3: Cross multiply
   12,577.61x = 17,359.94 × 8,328.83
4. Step 4: Simplify right side
   12,577.61x = 144,587,923.09
5. Step 5: Solve for x
   x = 144,587,923.09/12,577.61
6. Step 6: Final answer
   x = 11,495.66