Finding the Fourth Proportional to 22,092.50, 30,487.65 and 12,156.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,092.50 : 30,487.65 = 12,156.50 : x
2. Step 2: Convert to fraction form
   22,092.50/30,487.65 = 12,156.50/x
3. Step 3: Cross multiply
   22,092.50x = 30,487.65 × 12,156.50
4. Step 4: Simplify right side
   22,092.50x = 370,623,117.23
5. Step 5: Solve for x
   x = 370,623,117.23/22,092.50
6. Step 6: Final answer
   x = 16,775.97