Finding the Fourth Proportional to 42,062.12, 62,961.96 and 30,981.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,062.12 : 62,961.96 = 30,981.32 : x
2. Step 2: Convert to fraction form
   42,062.12/62,961.96 = 30,981.32/x
3. Step 3: Cross multiply
   42,062.12x = 62,961.96 × 30,981.32
4. Step 4: Simplify right side
   42,062.12x = 1,950,644,630.59
5. Step 5: Solve for x
   x = 1,950,644,630.59/42,062.12
6. Step 6: Final answer
   x = 46,375.33