Finding the Fourth Proportional to 42,039.12, 58,016.88 and 24,139.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,039.12 : 58,016.88 = 24,139.20 : x
2. Step 2: Convert to fraction form
   42,039.12/58,016.88 = 24,139.20/x
3. Step 3: Cross multiply
   42,039.12x = 58,016.88 × 24,139.20
4. Step 4: Simplify right side
   42,039.12x = 1,400,481,069.70
5. Step 5: Solve for x
   x = 1,400,481,069.70/42,039.12
6. Step 6: Final answer
   x = 33,313.76