Finding the Fourth Proportional to 28,622.25, 42,877.78 and 16,104.10

Step by Step Solution

1. Step 1: Write the proportion equation
   28,622.25 : 42,877.78 = 16,104.10 : x
2. Step 2: Convert to fraction form
   28,622.25/42,877.78 = 16,104.10/x
3. Step 3: Cross multiply
   28,622.25x = 42,877.78 × 16,104.10
4. Step 4: Simplify right side
   28,622.25x = 690,507,976.38
5. Step 5: Solve for x
   x = 690,507,976.38/28,622.25
6. Step 6: Final answer
   x = 24,124.87