Finding the Fourth Proportional to 17,608.78, 26,406.59 and 5,759.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,608.78 : 26,406.59 = 5,759.80 : x
2. Step 2: Convert to fraction form
   17,608.78/26,406.59 = 5,759.80/x
3. Step 3: Cross multiply
   17,608.78x = 26,406.59 × 5,759.80
4. Step 4: Simplify right side
   17,608.78x = 152,096,677.08
5. Step 5: Solve for x
   x = 152,096,677.08/17,608.78
6. Step 6: Final answer
   x = 8,637.55