Finding the Fourth Proportional to 17,598.78, 26,402.11 and 5,911.69

Step by Step Solution

1. Step 1: Write the proportion equation
   17,598.78 : 26,402.11 = 5,911.69 : x
2. Step 2: Convert to fraction form
   17,598.78/26,402.11 = 5,911.69/x
3. Step 3: Cross multiply
   17,598.78x = 26,402.11 × 5,911.69
4. Step 4: Simplify right side
   17,598.78x = 156,081,089.67
5. Step 5: Solve for x
   x = 156,081,089.67/17,598.78
6. Step 6: Final answer
   x = 8,868.86