Finding the Fourth Proportional to 42,648.40, 58,869.48 and 25,662.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,648.40 : 58,869.48 = 25,662.16 : x
2. Step 2: Convert to fraction form
   42,648.40/58,869.48 = 25,662.16/x
3. Step 3: Cross multiply
   42,648.40x = 58,869.48 × 25,662.16
4. Step 4: Simplify right side
   42,648.40x = 1,510,718,014.88
5. Step 5: Solve for x
   x = 1,510,718,014.88/42,648.40
6. Step 6: Final answer
   x = 35,422.62