Finding the Fourth Proportional to 9,360.18, 12,916.71 and 5,168.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,360.18 : 12,916.71 = 5,168.34 : x
2. Step 2: Convert to fraction form
   9,360.18/12,916.71 = 5,168.34/x
3. Step 3: Cross multiply
   9,360.18x = 12,916.71 × 5,168.34
4. Step 4: Simplify right side
   9,360.18x = 66,757,948.96
5. Step 5: Solve for x
   x = 66,757,948.96/9,360.18
6. Step 6: Final answer
   x = 7,132.12