Finding the Fourth Proportional to 8,098.72, 12,120.64 and 4,980.70

Step by Step Solution

1. Step 1: Write the proportion equation
   8,098.72 : 12,120.64 = 4,980.70 : x
2. Step 2: Convert to fraction form
   8,098.72/12,120.64 = 4,980.70/x
3. Step 3: Cross multiply
   8,098.72x = 12,120.64 × 4,980.70
4. Step 4: Simplify right side
   8,098.72x = 60,369,271.65
5. Step 5: Solve for x
   x = 60,369,271.65/8,098.72
6. Step 6: Final answer
   x = 7,454.17