Finding the Fourth Proportional to 9,778.83, 14,671.61 and 2,854.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,778.83 : 14,671.61 = 2,854.35 : x
2. Step 2: Convert to fraction form
   9,778.83/14,671.61 = 2,854.35/x
3. Step 3: Cross multiply
   9,778.83x = 14,671.61 × 2,854.35
4. Step 4: Simplify right side
   9,778.83x = 41,877,895.73
5. Step 5: Solve for x
   x = 41,877,895.73/9,778.83
6. Step 6: Final answer
   x = 4,282.51