Finding the Fourth Proportional to 42,890.70, 59,174.98 and 25,888.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,890.70 : 59,174.98 = 25,888.48 : x
2. Step 2: Convert to fraction form
   42,890.70/59,174.98 = 25,888.48/x
3. Step 3: Cross multiply
   42,890.70x = 59,174.98 × 25,888.48
4. Step 4: Simplify right side
   42,890.70x = 1,531,950,406.43
5. Step 5: Solve for x
   x = 1,531,950,406.43/42,890.70
6. Step 6: Final answer
   x = 35,717.54