Finding the Fourth Proportional to 7,983.32, 11,904.65 and 7,429.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,983.32 : 11,904.65 = 7,429.28 : x
2. Step 2: Convert to fraction form
   7,983.32/11,904.65 = 7,429.28/x
3. Step 3: Cross multiply
   7,983.32x = 11,904.65 × 7,429.28
4. Step 4: Simplify right side
   7,983.32x = 88,442,978.15
5. Step 5: Solve for x
   x = 88,442,978.15/7,983.32
6. Step 6: Final answer
   x = 11,078.47