Finding the Fourth Proportional to 42,735.20, 58,891.23 and 30,775.95

Step by Step Solution

1. Step 1: Write the proportion equation
   42,735.20 : 58,891.23 = 30,775.95 : x
2. Step 2: Convert to fraction form
   42,735.20/58,891.23 = 30,775.95/x
3. Step 3: Cross multiply
   42,735.20x = 58,891.23 × 30,775.95
4. Step 4: Simplify right side
   42,735.20x = 1,812,433,549.92
5. Step 5: Solve for x
   x = 1,812,433,549.92/42,735.20
6. Step 6: Final answer
   x = 42,410.79