Finding the Fourth Proportional to 42,735.67, 58,950.58 and 25,728.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,735.67 : 58,950.58 = 25,728.10 : x
2. Step 2: Convert to fraction form
   42,735.67/58,950.58 = 25,728.10/x
3. Step 3: Cross multiply
   42,735.67x = 58,950.58 × 25,728.10
4. Step 4: Simplify right side
   42,735.67x = 1,516,686,417.30
5. Step 5: Solve for x
   x = 1,516,686,417.30/42,735.67
6. Step 6: Final answer
   x = 35,489.94