Finding the Fourth Proportional to 10,167.55, 15,249.75 and 2,772.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,167.55 : 15,249.75 = 2,772.61 : x
2. Step 2: Convert to fraction form
   10,167.55/15,249.75 = 2,772.61/x
3. Step 3: Cross multiply
   10,167.55x = 15,249.75 × 2,772.61
4. Step 4: Simplify right side
   10,167.55x = 42,281,560.83
5. Step 5: Solve for x
   x = 42,281,560.83/10,167.55
6. Step 6: Final answer
   x = 4,158.48