Finding the Fourth Proportional to 22,139.51, 30,552.04 and 12,067.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,139.51 : 30,552.04 = 12,067.57 : x
2. Step 2: Convert to fraction form
   22,139.51/30,552.04 = 12,067.57/x
3. Step 3: Cross multiply
   22,139.51x = 30,552.04 × 12,067.57
4. Step 4: Simplify right side
   22,139.51x = 368,688,820.05
5. Step 5: Solve for x
   x = 368,688,820.05/22,139.51
6. Step 6: Final answer
   x = 16,652.98