Finding the Fourth Proportional to 9,078.68, 12,499.62 and 7,747.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,078.68 : 12,499.62 = 7,747.04 : x
2. Step 2: Convert to fraction form
   9,078.68/12,499.62 = 7,747.04/x
3. Step 3: Cross multiply
   9,078.68x = 12,499.62 × 7,747.04
4. Step 4: Simplify right side
   9,078.68x = 96,835,058.32
5. Step 5: Solve for x
   x = 96,835,058.32/9,078.68
6. Step 6: Final answer
   x = 10,666.20