Finding the Fourth Proportional to 42,689.27, 58,908.62 and 25,699.03

Step by Step Solution

1. Step 1: Write the proportion equation
   42,689.27 : 58,908.62 = 25,699.03 : x
2. Step 2: Convert to fraction form
   42,689.27/58,908.62 = 25,699.03/x
3. Step 3: Cross multiply
   42,689.27x = 58,908.62 × 25,699.03
4. Step 4: Simplify right side
   42,689.27x = 1,513,894,309.61
5. Step 5: Solve for x
   x = 1,513,894,309.61/42,689.27
6. Step 6: Final answer
   x = 35,463.11