Finding the Fourth Proportional to 9,201.57, 12,696.78 and 5,168.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,201.57 : 12,696.78 = 5,168.24 : x
2. Step 2: Convert to fraction form
   9,201.57/12,696.78 = 5,168.24/x
3. Step 3: Cross multiply
   9,201.57x = 12,696.78 × 5,168.24
4. Step 4: Simplify right side
   9,201.57x = 65,620,009.78
5. Step 5: Solve for x
   x = 65,620,009.78/9,201.57
6. Step 6: Final answer
   x = 7,131.40