Finding the Fourth Proportional to 42,067.60, 63,103.02 and 10,902.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,067.60 : 63,103.02 = 10,902.04 : x
2. Step 2: Convert to fraction form
   42,067.60/63,103.02 = 10,902.04/x
3. Step 3: Cross multiply
   42,067.60x = 63,103.02 × 10,902.04
4. Step 4: Simplify right side
   42,067.60x = 687,951,648.16
5. Step 5: Solve for x
   x = 687,951,648.16/42,067.60
6. Step 6: Final answer
   x = 16,353.48