Finding the Fourth Proportional to 22,100.75, 30,499.10 and 12,164.75

Step by Step Solution

1. Step 1: Write the proportion equation
   22,100.75 : 30,499.10 = 12,164.75 : x
2. Step 2: Convert to fraction form
   22,100.75/30,499.10 = 12,164.75/x
3. Step 3: Cross multiply
   22,100.75x = 30,499.10 × 12,164.75
4. Step 4: Simplify right side
   22,100.75x = 371,013,926.73
5. Step 5: Solve for x
   x = 371,013,926.73/22,100.75
6. Step 6: Final answer
   x = 16,787.39