Finding the Fourth Proportional to 12,339.79, 17,022.89 and 8,088.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,339.79 : 17,022.89 = 8,088.98 : x
2. Step 2: Convert to fraction form
   12,339.79/17,022.89 = 8,088.98/x
3. Step 3: Cross multiply
   12,339.79x = 17,022.89 × 8,088.98
4. Step 4: Simplify right side
   12,339.79x = 137,697,802.11
5. Step 5: Solve for x
   x = 137,697,802.11/12,339.79
6. Step 6: Final answer
   x = 11,158.84