Finding the Fourth Proportional to 9,390.68, 12,958.25 and 5,613.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,390.68 : 12,958.25 = 5,613.10 : x
2. Step 2: Convert to fraction form
   9,390.68/12,958.25 = 5,613.10/x
3. Step 3: Cross multiply
   9,390.68x = 12,958.25 × 5,613.10
4. Step 4: Simplify right side
   9,390.68x = 72,735,892.61
5. Step 5: Solve for x
   x = 72,735,892.61/9,390.68
6. Step 6: Final answer
   x = 7,745.54