Finding the Fourth Proportional to 42,219.48, 58,253.94 and 25,219.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,219.48 : 58,253.94 = 25,219.20 : x
2. Step 2: Convert to fraction form
   42,219.48/58,253.94 = 25,219.20/x
3. Step 3: Cross multiply
   42,219.48x = 58,253.94 × 25,219.20
4. Step 4: Simplify right side
   42,219.48x = 1,469,117,763.65
5. Step 5: Solve for x
   x = 1,469,117,763.65/42,219.48
6. Step 6: Final answer
   x = 34,797.15