Finding the Fourth Proportional to 10,641.84, 15,963.12 and 2,850.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,641.84 : 15,963.12 = 2,850.72 : x
2. Step 2: Convert to fraction form
   10,641.84/15,963.12 = 2,850.72/x
3. Step 3: Cross multiply
   10,641.84x = 15,963.12 × 2,850.72
4. Step 4: Simplify right side
   10,641.84x = 45,506,385.45
5. Step 5: Solve for x
   x = 45,506,385.45/10,641.84
6. Step 6: Final answer
   x = 4,276.18