Finding the Fourth Proportional to 9,030.24, 12,434.04 and 7,904.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,030.24 : 12,434.04 = 7,904.88 : x
2. Step 2: Convert to fraction form
   9,030.24/12,434.04 = 7,904.88/x
3. Step 3: Cross multiply
   9,030.24x = 12,434.04 × 7,904.88
4. Step 4: Simplify right side
   9,030.24x = 98,289,594.12
5. Step 5: Solve for x
   x = 98,289,594.12/9,030.24
6. Step 6: Final answer
   x = 10,884.49