Finding the Fourth Proportional to 8,904.96, 12,290.56 and 5,179.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,904.96 : 12,290.56 = 5,179.52 : x
2. Step 2: Convert to fraction form
   8,904.96/12,290.56 = 5,179.52/x
3. Step 3: Cross multiply
   8,904.96x = 12,290.56 × 5,179.52
4. Step 4: Simplify right side
   8,904.96x = 63,659,201.33
5. Step 5: Solve for x
   x = 63,659,201.33/8,904.96
6. Step 6: Final answer
   x = 7,148.74