Finding the Fourth Proportional to 22,054.50, 30,435.21 and 12,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,054.50 : 30,435.21 = 12,118.50 : x
2. Step 2: Convert to fraction form
   22,054.50/30,435.21 = 12,118.50/x
3. Step 3: Cross multiply
   22,054.50x = 30,435.21 × 12,118.50
4. Step 4: Simplify right side
   22,054.50x = 368,829,092.39
5. Step 5: Solve for x
   x = 368,829,092.39/22,054.50
6. Step 6: Final answer
   x = 16,723.53