Finding the Fourth Proportional to 9,155.04, 12,632.94 and 5,122.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,155.04 : 12,632.94 = 5,122.05 : x
2. Step 2: Convert to fraction form
   9,155.04/12,632.94 = 5,122.05/x
3. Step 3: Cross multiply
   9,155.04x = 12,632.94 × 5,122.05
4. Step 4: Simplify right side
   9,155.04x = 64,706,550.33
5. Step 5: Solve for x
   x = 64,706,550.33/9,155.04
6. Step 6: Final answer
   x = 7,067.86