Finding the Fourth Proportional to 42,618.36, 58,817.70 and 25,628.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,618.36 : 58,817.70 = 25,628.12 : x
2. Step 2: Convert to fraction form
   42,618.36/58,817.70 = 25,628.12/x
3. Step 3: Cross multiply
   42,618.36x = 58,817.70 × 25,628.12
4. Step 4: Simplify right side
   42,618.36x = 1,507,387,073.72
5. Step 5: Solve for x
   x = 1,507,387,073.72/42,618.36
6. Step 6: Final answer
   x = 35,369.43