Finding the Fourth Proportional to 9,111.79, 13,669.61 and 2,873.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.79 : 13,669.61 = 2,873.58 : x
2. Step 2: Convert to fraction form
   9,111.79/13,669.61 = 2,873.58/x
3. Step 3: Cross multiply
   9,111.79x = 13,669.61 × 2,873.58
4. Step 4: Simplify right side
   9,111.79x = 39,280,717.90
5. Step 5: Solve for x
   x = 39,280,717.90/9,111.79
6. Step 6: Final answer
   x = 4,310.98