Finding the Fourth Proportional to 22,092, 30,487.60 and 12,156

Step by Step Solution

1. Step 1: Write the proportion equation
   22,092 : 30,487.60 = 12,156 : x
2. Step 2: Convert to fraction form
   22,092/30,487.60 = 12,156/x
3. Step 3: Cross multiply
   22,092x = 30,487.60 × 12,156
4. Step 4: Simplify right side
   22,092x = 370,607,265.60
5. Step 5: Solve for x
   x = 370,607,265.60/22,092
6. Step 6: Final answer
   x = 16,775.63