Finding the Fourth Proportional to 9,393.74, 12,965.67 and 5,619.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,393.74 : 12,965.67 = 5,619.14 : x
2. Step 2: Convert to fraction form
   9,393.74/12,965.67 = 5,619.14/x
3. Step 3: Cross multiply
   9,393.74x = 12,965.67 × 5,619.14
4. Step 4: Simplify right side
   9,393.74x = 72,855,850.10
5. Step 5: Solve for x
   x = 72,855,850.10/9,393.74
6. Step 6: Final answer
   x = 7,755.79