Finding the Fourth Proportional to 9,211.52, 12,708.29 and 5,668.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,211.52 : 12,708.29 = 5,668.58 : x
2. Step 2: Convert to fraction form
   9,211.52/12,708.29 = 5,668.58/x
3. Step 3: Cross multiply
   9,211.52x = 12,708.29 × 5,668.58
4. Step 4: Simplify right side
   9,211.52x = 72,038,004.47
5. Step 5: Solve for x
   x = 72,038,004.47/9,211.52
6. Step 6: Final answer
   x = 7,820.42