Finding the Fourth Proportional to 9,393.74, 12,962.96 and 5,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,393.74 : 12,962.96 = 5,144.72 : x
2. Step 2: Convert to fraction form
   9,393.74/12,962.96 = 5,144.72/x
3. Step 3: Cross multiply
   9,393.74x = 12,962.96 × 5,144.72
4. Step 4: Simplify right side
   9,393.74x = 66,690,799.57
5. Step 5: Solve for x
   x = 66,690,799.57/9,393.74
6. Step 6: Final answer
   x = 7,099.49