Finding the Fourth Proportional to 9,780.30, 14,671.48 and 2,854.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,780.30 : 14,671.48 = 2,854.82 : x
2. Step 2: Convert to fraction form
   9,780.30/14,671.48 = 2,854.82/x
3. Step 3: Cross multiply
   9,780.30x = 14,671.48 × 2,854.82
4. Step 4: Simplify right side
   9,780.30x = 41,884,434.53
5. Step 5: Solve for x
   x = 41,884,434.53/9,780.30
6. Step 6: Final answer
   x = 4,282.53