Finding the Fourth Proportional to 42,870.91, 59,163.98 and 25,874.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,870.91 : 59,163.98 = 25,874.89 : x
2. Step 2: Convert to fraction form
   42,870.91/59,163.98 = 25,874.89/x
3. Step 3: Cross multiply
   42,870.91x = 59,163.98 × 25,874.89
4. Step 4: Simplify right side
   42,870.91x = 1,530,861,474.46
5. Step 5: Solve for x
   x = 1,530,861,474.46/42,870.91
6. Step 6: Final answer
   x = 35,708.63