Finding the Fourth Proportional to 42,011.99, 58,033.17 and 39,022.61

Step by Step Solution

1. Step 1: Write the proportion equation
   42,011.99 : 58,033.17 = 39,022.61 : x
2. Step 2: Convert to fraction form
   42,011.99/58,033.17 = 39,022.61/x
3. Step 3: Cross multiply
   42,011.99x = 58,033.17 × 39,022.61
4. Step 4: Simplify right side
   42,011.99x = 2,264,605,469.81
5. Step 5: Solve for x
   x = 2,264,605,469.81/42,011.99
6. Step 6: Final answer
   x = 53,903.80