Finding the Fourth Proportional to 22,145.99, 30,560.90 and 12,074.45

Step by Step Solution

1. Step 1: Write the proportion equation
   22,145.99 : 30,560.90 = 12,074.45 : x
2. Step 2: Convert to fraction form
   22,145.99/30,560.90 = 12,074.45/x
3. Step 3: Cross multiply
   22,145.99x = 30,560.90 × 12,074.45
4. Step 4: Simplify right side
   22,145.99x = 369,005,845.83
5. Step 5: Solve for x
   x = 369,005,845.83/22,145.99
6. Step 6: Final answer
   x = 16,662.43