Finding the Fourth Proportional to 42,144.09, 58,159.99 and 25,158.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,144.09 : 58,159.99 = 25,158.20 : x
2. Step 2: Convert to fraction form
   42,144.09/58,159.99 = 25,158.20/x
3. Step 3: Cross multiply
   42,144.09x = 58,159.99 × 25,158.20
4. Step 4: Simplify right side
   42,144.09x = 1,463,200,365.69
5. Step 5: Solve for x
   x = 1,463,200,365.69/42,144.09
6. Step 6: Final answer
   x = 34,718.99