Finding the Fourth Proportional to 9,854.56, 14,781.39 and 3,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,854.56 : 14,781.39 = 3,280.50 : x
2. Step 2: Convert to fraction form
   9,854.56/14,781.39 = 3,280.50/x
3. Step 3: Cross multiply
   9,854.56x = 14,781.39 × 3,280.50
4. Step 4: Simplify right side
   9,854.56x = 48,490,337.59
5. Step 5: Solve for x
   x = 48,490,337.59/9,854.56
6. Step 6: Final answer
   x = 4,920.60