Finding the Fourth Proportional to 9,360.33, 12,917.39 and 5,382.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,360.33 : 12,917.39 = 5,382.15 : x
2. Step 2: Convert to fraction form
   9,360.33/12,917.39 = 5,382.15/x
3. Step 3: Cross multiply
   9,360.33x = 12,917.39 × 5,382.15
4. Step 4: Simplify right side
   9,360.33x = 69,523,330.59
5. Step 5: Solve for x
   x = 69,523,330.59/9,360.33
6. Step 6: Final answer
   x = 7,427.44