Finding the Fourth Proportional to 22,081.45, 30,499.75 and 16,021.97

Step by Step Solution

1. Step 1: Write the proportion equation
   22,081.45 : 30,499.75 = 16,021.97 : x
2. Step 2: Convert to fraction form
   22,081.45/30,499.75 = 16,021.97/x
3. Step 3: Cross multiply
   22,081.45x = 30,499.75 × 16,021.97
4. Step 4: Simplify right side
   22,081.45x = 488,666,079.51
5. Step 5: Solve for x
   x = 488,666,079.51/22,081.45
6. Step 6: Final answer
   x = 22,130.16