Finding the Fourth Proportional to 9,407.02, 12,979.06 and 7,411.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407.02 : 12,979.06 = 7,411.39 : x
2. Step 2: Convert to fraction form
   9,407.02/12,979.06 = 7,411.39/x
3. Step 3: Cross multiply
   9,407.02x = 12,979.06 × 7,411.39
4. Step 4: Simplify right side
   9,407.02x = 96,192,875.49
5. Step 5: Solve for x
   x = 96,192,875.49/9,407.02
6. Step 6: Final answer
   x = 10,225.65