Finding the Fourth Proportional to 42,496.67, 63,744.60 and 25,861.43

Step by Step Solution

1. Step 1: Write the proportion equation
   42,496.67 : 63,744.60 = 25,861.43 : x
2. Step 2: Convert to fraction form
   42,496.67/63,744.60 = 25,861.43/x
3. Step 3: Cross multiply
   42,496.67x = 63,744.60 × 25,861.43
4. Step 4: Simplify right side
   42,496.67x = 1,648,526,510.78
5. Step 5: Solve for x
   x = 1,648,526,510.78/42,496.67
6. Step 6: Final answer
   x = 38,791.90