Finding the Fourth Proportional to 59,297.25, 81,849.65 and 42,578.85

Step by Step Solution

1. Step 1: Write the proportion equation
   59,297.25 : 81,849.65 = 42,578.85 : x
2. Step 2: Convert to fraction form
   59,297.25/81,849.65 = 42,578.85/x
3. Step 3: Cross multiply
   59,297.25x = 81,849.65 × 42,578.85
4. Step 4: Simplify right side
   59,297.25x = 3,485,063,757.01
5. Step 5: Solve for x
   x = 3,485,063,757.01/59,297.25
6. Step 6: Final answer
   x = 58,772.77