Finding the Fourth Proportional to 22,141.20, 30,554.15 and 12,069.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,141.20 : 30,554.15 = 12,069.48 : x
2. Step 2: Convert to fraction form
   22,141.20/30,554.15 = 12,069.48/x
3. Step 3: Cross multiply
   22,141.20x = 30,554.15 × 12,069.48
4. Step 4: Simplify right side
   22,141.20x = 368,772,641.99
5. Step 5: Solve for x
   x = 368,772,641.99/22,141.20
6. Step 6: Final answer
   x = 16,655.49