Finding the Fourth Proportional to 8,054.10, 12,080.16 and 3,120.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,054.10 : 12,080.16 = 3,120.42 : x
2. Step 2: Convert to fraction form
   8,054.10/12,080.16 = 3,120.42/x
3. Step 3: Cross multiply
   8,054.10x = 12,080.16 × 3,120.42
4. Step 4: Simplify right side
   8,054.10x = 37,695,172.87
5. Step 5: Solve for x
   x = 37,695,172.87/8,054.10
6. Step 6: Final answer
   x = 4,680.25