Finding the Fourth Proportional to 10,640.88, 15,963.35 and 4,066.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,640.88 : 15,963.35 = 4,066.52 : x
2. Step 2: Convert to fraction form
   10,640.88/15,963.35 = 4,066.52/x
3. Step 3: Cross multiply
   10,640.88x = 15,963.35 × 4,066.52
4. Step 4: Simplify right side
   10,640.88x = 64,915,181.89
5. Step 5: Solve for x
   x = 64,915,181.89/10,640.88
6. Step 6: Final answer
   x = 6,100.55