Finding the Fourth Proportional to 42,761.78, 59,016.23 and 35,578.99

Step by Step Solution

1. Step 1: Write the proportion equation
   42,761.78 : 59,016.23 = 35,578.99 : x
2. Step 2: Convert to fraction form
   42,761.78/59,016.23 = 35,578.99/x
3. Step 3: Cross multiply
   42,761.78x = 59,016.23 × 35,578.99
4. Step 4: Simplify right side
   42,761.78x = 2,099,737,857.01
5. Step 5: Solve for x
   x = 2,099,737,857.01/42,761.78
6. Step 6: Final answer
   x = 49,103.14