Finding the Fourth Proportional to 17,599.85, 26,402.00 and 8,109.89

Step by Step Solution

1. Step 1: Write the proportion equation
   17,599.85 : 26,402.00 = 8,109.89 : x
2. Step 2: Convert to fraction form
   17,599.85/26,402.00 = 8,109.89/x
3. Step 3: Cross multiply
   17,599.85x = 26,402.00 × 8,109.89
4. Step 4: Simplify right side
   17,599.85x = 214,117,143.22
5. Step 5: Solve for x
   x = 214,117,143.22/17,599.85
6. Step 6: Final answer
   x = 12,165.85