Finding the Fourth Proportional to 22,153, 30,570.72 and 12,081.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,153 : 30,570.72 = 12,081.52 : x
2. Step 2: Convert to fraction form
   22,153/30,570.72 = 12,081.52/x
3. Step 3: Cross multiply
   22,153x = 30,570.72 × 12,081.52
4. Step 4: Simplify right side
   22,153x = 369,340,765.09
5. Step 5: Solve for x
   x = 369,340,765.09/22,153
6. Step 6: Final answer
   x = 16,672.27