Finding the Fourth Proportional to 22,047.23, 30,426.70 and 12,487

Step by Step Solution

1. Step 1: Write the proportion equation
   22,047.23 : 30,426.70 = 12,487 : x
2. Step 2: Convert to fraction form
   22,047.23/30,426.70 = 12,487/x
3. Step 3: Cross multiply
   22,047.23x = 30,426.70 × 12,487
4. Step 4: Simplify right side
   22,047.23x = 379,938,202.90
5. Step 5: Solve for x
   x = 379,938,202.90/22,047.23
6. Step 6: Final answer
   x = 17,232.92