Finding the Fourth Proportional to 9,391.90, 12,958.69 and 5,614.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,391.90 : 12,958.69 = 5,614.44 : x
2. Step 2: Convert to fraction form
   9,391.90/12,958.69 = 5,614.44/x
3. Step 3: Cross multiply
   9,391.90x = 12,958.69 × 5,614.44
4. Step 4: Simplify right side
   9,391.90x = 72,755,787.48
5. Step 5: Solve for x
   x = 72,755,787.48/9,391.90
6. Step 6: Final answer
   x = 7,746.65