Finding the Fourth Proportional to 5,872.80, 8,106.12 and 3,776.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,872.80 : 8,106.12 = 3,776.16 : x
2. Step 2: Convert to fraction form
   5,872.80/8,106.12 = 3,776.16/x
3. Step 3: Cross multiply
   5,872.80x = 8,106.12 × 3,776.16
4. Step 4: Simplify right side
   5,872.80x = 30,610,006.10
5. Step 5: Solve for x
   x = 30,610,006.10/5,872.80
6. Step 6: Final answer
   x = 5,212.17