Finding the Fourth Proportional to 22,200.02, 30,635.51 and 12,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,200.02 : 30,635.51 = 12,128.50 : x
2. Step 2: Convert to fraction form
   22,200.02/30,635.51 = 12,128.50/x
3. Step 3: Cross multiply
   22,200.02x = 30,635.51 × 12,128.50
4. Step 4: Simplify right side
   22,200.02x = 371,562,783.04
5. Step 5: Solve for x
   x = 371,562,783.04/22,200.02
6. Step 6: Final answer
   x = 16,737.05