Finding the Fourth Proportional to 8,108.32, 12,127.92 and 4,980.64

Step by Step Solution

1. Step 1: Write the proportion equation
   8,108.32 : 12,127.92 = 4,980.64 : x
2. Step 2: Convert to fraction form
   8,108.32/12,127.92 = 4,980.64/x
3. Step 3: Cross multiply
   8,108.32x = 12,127.92 × 4,980.64
4. Step 4: Simplify right side
   8,108.32x = 60,404,803.47
5. Step 5: Solve for x
   x = 60,404,803.47/8,108.32
6. Step 6: Final answer
   x = 7,449.73