Finding the Fourth Proportional to 22,111.50, 30,513.90 and 12,175.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,111.50 : 30,513.90 = 12,175.50 : x
2. Step 2: Convert to fraction form
   22,111.50/30,513.90 = 12,175.50/x
3. Step 3: Cross multiply
   22,111.50x = 30,513.90 × 12,175.50
4. Step 4: Simplify right side
   22,111.50x = 371,521,989.45
5. Step 5: Solve for x
   x = 371,521,989.45/22,111.50
6. Step 6: Final answer
   x = 16,802.21