Finding the Fourth Proportional to 9,789.40, 14,686.38 and 2,864.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,789.40 : 14,686.38 = 2,864.44 : x
2. Step 2: Convert to fraction form
   9,789.40/14,686.38 = 2,864.44/x
3. Step 3: Cross multiply
   9,789.40x = 14,686.38 × 2,864.44
4. Step 4: Simplify right side
   9,789.40x = 42,068,254.33
5. Step 5: Solve for x
   x = 42,068,254.33/9,789.40
6. Step 6: Final answer
   x = 4,297.33