Finding the Fourth Proportional to 9,317.27, 12,858.17 and 5,339.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,317.27 : 12,858.17 = 5,339.15 : x
2. Step 2: Convert to fraction form
   9,317.27/12,858.17 = 5,339.15/x
3. Step 3: Cross multiply
   9,317.27x = 12,858.17 × 5,339.15
4. Step 4: Simplify right side
   9,317.27x = 68,651,607.37
5. Step 5: Solve for x
   x = 68,651,607.37/9,317.27
6. Step 6: Final answer
   x = 7,368.21