Finding the Fourth Proportional to 8,192.32, 12,290.76 and 2,998.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,192.32 : 12,290.76 = 2,998.72 : x
2. Step 2: Convert to fraction form
   8,192.32/12,290.76 = 2,998.72/x
3. Step 3: Cross multiply
   8,192.32x = 12,290.76 × 2,998.72
4. Step 4: Simplify right side
   8,192.32x = 36,856,547.83
5. Step 5: Solve for x
   x = 36,856,547.83/8,192.32
6. Step 6: Final answer
   x = 4,498.91