Finding the Fourth Proportional to 10,464.89, 15,694.90 and 3,894.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,464.89 : 15,694.90 = 3,894.17 : x
2. Step 2: Convert to fraction form
   10,464.89/15,694.90 = 3,894.17/x
3. Step 3: Cross multiply
   10,464.89x = 15,694.90 × 3,894.17
4. Step 4: Simplify right side
   10,464.89x = 61,118,520.52
5. Step 5: Solve for x
   x = 61,118,520.52/10,464.89
6. Step 6: Final answer
   x = 5,840.34