Finding the Fourth Proportional to 8,100.61, 12,152.84 and 3,168.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,100.61 : 12,152.84 = 3,168.92 : x
2. Step 2: Convert to fraction form
   8,100.61/12,152.84 = 3,168.92/x
3. Step 3: Cross multiply
   8,100.61x = 12,152.84 × 3,168.92
4. Step 4: Simplify right side
   8,100.61x = 38,511,392.27
5. Step 5: Solve for x
   x = 38,511,392.27/8,100.61
6. Step 6: Final answer
   x = 4,754.14