Finding the Fourth Proportional to 42,589.35, 63,835.58 and 25,912.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,589.35 : 63,835.58 = 25,912.62 : x
2. Step 2: Convert to fraction form
   42,589.35/63,835.58 = 25,912.62/x
3. Step 3: Cross multiply
   42,589.35x = 63,835.58 × 25,912.62
4. Step 4: Simplify right side
   42,589.35x = 1,654,146,997.46
5. Step 5: Solve for x
   x = 1,654,146,997.46/42,589.35
6. Step 6: Final answer
   x = 38,839.45