Finding the Fourth Proportional to 42,315.67, 58,381.89 and 25,089.40

Step by Step Solution

1. Step 1: Write the proportion equation
   42,315.67 : 58,381.89 = 25,089.40 : x
2. Step 2: Convert to fraction form
   42,315.67/58,381.89 = 25,089.40/x
3. Step 3: Cross multiply
   42,315.67x = 58,381.89 × 25,089.40
4. Step 4: Simplify right side
   42,315.67x = 1,464,766,299.06
5. Step 5: Solve for x
   x = 1,464,766,299.06/42,315.67
6. Step 6: Final answer
   x = 34,615.23