Finding the Fourth Proportional to 22,081.50, 30,472.95 and 12,145.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,081.50 : 30,472.95 = 12,145.50 : x
2. Step 2: Convert to fraction form
   22,081.50/30,472.95 = 12,145.50/x
3. Step 3: Cross multiply
   22,081.50x = 30,472.95 × 12,145.50
4. Step 4: Simplify right side
   22,081.50x = 370,109,214.23
5. Step 5: Solve for x
   x = 370,109,214.23/22,081.50
6. Step 6: Final answer
   x = 16,761.05