Finding the Fourth Proportional to 21,919.92, 32,883 and 7,124.04

Step by Step Solution

1. Step 1: Write the proportion equation
   21,919.92 : 32,883 = 7,124.04 : x
2. Step 2: Convert to fraction form
   21,919.92/32,883 = 7,124.04/x
3. Step 3: Cross multiply
   21,919.92x = 32,883 × 7,124.04
4. Step 4: Simplify right side
   21,919.92x = 234,259,807.32
5. Step 5: Solve for x
   x = 234,259,807.32/21,919.92
6. Step 6: Final answer
   x = 10,687.07