Finding the Fourth Proportional to 9,908.79, 14,863.38 and 2,889.33

Step by Step Solution

1. Step 1: Write the proportion equation
   9,908.79 : 14,863.38 = 2,889.33 : x
2. Step 2: Convert to fraction form
   9,908.79/14,863.38 = 2,889.33/x
3. Step 3: Cross multiply
   9,908.79x = 14,863.38 × 2,889.33
4. Step 4: Simplify right side
   9,908.79x = 42,945,209.74
5. Step 5: Solve for x
   x = 42,945,209.74/9,908.79
6. Step 6: Final answer
   x = 4,334.05