Finding the Fourth Proportional to 17,212.56, 25,821.27 and 5,521.83

Step by Step Solution

1. Step 1: Write the proportion equation
   17,212.56 : 25,821.27 = 5,521.83 : x
2. Step 2: Convert to fraction form
   17,212.56/25,821.27 = 5,521.83/x
3. Step 3: Cross multiply
   17,212.56x = 25,821.27 × 5,521.83
4. Step 4: Simplify right side
   17,212.56x = 142,580,663.32
5. Step 5: Solve for x
   x = 142,580,663.32/17,212.56
6. Step 6: Final answer
   x = 8,283.52