Finding the Fourth Proportional to 9,152.12, 13,727.83 and 2,578.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,152.12 : 13,727.83 = 2,578.13 : x
2. Step 2: Convert to fraction form
   9,152.12/13,727.83 = 2,578.13/x
3. Step 3: Cross multiply
   9,152.12x = 13,727.83 × 2,578.13
4. Step 4: Simplify right side
   9,152.12x = 35,392,055.27
5. Step 5: Solve for x
   x = 35,392,055.27/9,152.12
6. Step 6: Final answer
   x = 3,867.09