Finding the Fourth Proportional to 9,390.10, 12,958.94 and 5,411.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,390.10 : 12,958.94 = 5,411.46 : x
2. Step 2: Convert to fraction form
   9,390.10/12,958.94 = 5,411.46/x
3. Step 3: Cross multiply
   9,390.10x = 12,958.94 × 5,411.46
4. Step 4: Simplify right side
   9,390.10x = 70,126,785.45
5. Step 5: Solve for x
   x = 70,126,785.45/9,390.10
6. Step 6: Final answer
   x = 7,468.16