Finding the Fourth Proportional to 22,117.50, 30,522.15 and 12,181.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,117.50 : 30,522.15 = 12,181.50 : x
2. Step 2: Convert to fraction form
   22,117.50/30,522.15 = 12,181.50/x
3. Step 3: Cross multiply
   22,117.50x = 30,522.15 × 12,181.50
4. Step 4: Simplify right side
   22,117.50x = 371,805,570.23
5. Step 5: Solve for x
   x = 371,805,570.23/22,117.50
6. Step 6: Final answer
   x = 16,810.47