Finding the Fourth Proportional to 17,217.47, 25,826.18 and 5,538.89

Step by Step Solution

1. Step 1: Write the proportion equation
   17,217.47 : 25,826.18 = 5,538.89 : x
2. Step 2: Convert to fraction form
   17,217.47/25,826.18 = 5,538.89/x
3. Step 3: Cross multiply
   17,217.47x = 25,826.18 × 5,538.89
4. Step 4: Simplify right side
   17,217.47x = 143,048,213.31
5. Step 5: Solve for x
   x = 143,048,213.31/17,217.47
6. Step 6: Final answer
   x = 8,308.32