Finding the Fourth Proportional to 9,386.15, 12,950.82 and 5,608.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,386.15 : 12,950.82 = 5,608.75 : x
2. Step 2: Convert to fraction form
   9,386.15/12,950.82 = 5,608.75/x
3. Step 3: Cross multiply
   9,386.15x = 12,950.82 × 5,608.75
4. Step 4: Simplify right side
   9,386.15x = 72,637,911.68
5. Step 5: Solve for x
   x = 72,637,911.68/9,386.15
6. Step 6: Final answer
   x = 7,738.84