Finding the Fourth Proportional to 9,885.15, 14,825.39 and 2,863.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,885.15 : 14,825.39 = 2,863.31 : x
2. Step 2: Convert to fraction form
   9,885.15/14,825.39 = 2,863.31/x
3. Step 3: Cross multiply
   9,885.15x = 14,825.39 × 2,863.31
4. Step 4: Simplify right side
   9,885.15x = 42,449,599.00
5. Step 5: Solve for x
   x = 42,449,599.00/9,885.15
6. Step 6: Final answer
   x = 4,294.28