Finding the Fourth Proportional to 42,640.56, 63,902.52 and 30,950.64

Step by Step Solution

1. Step 1: Write the proportion equation
   42,640.56 : 63,902.52 = 30,950.64 : x
2. Step 2: Convert to fraction form
   42,640.56/63,902.52 = 30,950.64/x
3. Step 3: Cross multiply
   42,640.56x = 63,902.52 × 30,950.64
4. Step 4: Simplify right side
   42,640.56x = 1,977,823,891.61
5. Step 5: Solve for x
   x = 1,977,823,891.61/42,640.56
6. Step 6: Final answer
   x = 46,383.63