Finding the Fourth Proportional to 22,005.21, 30,341.61 and 16,039.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,005.21 : 30,341.61 = 16,039.56 : x
2. Step 2: Convert to fraction form
   22,005.21/30,341.61 = 16,039.56/x
3. Step 3: Cross multiply
   22,005.21x = 30,341.61 × 16,039.56
4. Step 4: Simplify right side
   22,005.21x = 486,666,074.09
5. Step 5: Solve for x
   x = 486,666,074.09/22,005.21
6. Step 6: Final answer
   x = 22,115.95