Finding the Fourth Proportional to 8,098.79, 12,120.72 and 4,980.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,098.79 : 12,120.72 = 4,980.75 : x
2. Step 2: Convert to fraction form
   8,098.79/12,120.72 = 4,980.75/x
3. Step 3: Cross multiply
   8,098.79x = 12,120.72 × 4,980.75
4. Step 4: Simplify right side
   8,098.79x = 60,370,276.14
5. Step 5: Solve for x
   x = 60,370,276.14/8,098.79
6. Step 6: Final answer
   x = 7,454.24