Finding the Fourth Proportional to 17,213.76, 25,819.92 and 5,526.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,213.76 : 25,819.92 = 5,526.72 : x
2. Step 2: Convert to fraction form
   17,213.76/25,819.92 = 5,526.72/x
3. Step 3: Cross multiply
   17,213.76x = 25,819.92 × 5,526.72
4. Step 4: Simplify right side
   17,213.76x = 142,699,468.26
5. Step 5: Solve for x
   x = 142,699,468.26/17,213.76
6. Step 6: Final answer
   x = 8,289.85