Finding the Fourth Proportional to 30,785, 42,483.30 and 22,408.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,785 : 42,483.30 = 22,408.52 : x
2. Step 2: Convert to fraction form
   30,785/42,483.30 = 22,408.52/x
3. Step 3: Cross multiply
   30,785x = 42,483.30 × 22,408.52
4. Step 4: Simplify right side
   30,785x = 951,987,877.72
5. Step 5: Solve for x
   x = 951,987,877.72/30,785
6. Step 6: Final answer
   x = 30,923.76