Finding the Fourth Proportional to 59,297.50, 81,849.99 and 42,579.10

Step by Step Solution

1. Step 1: Write the proportion equation
   59,297.50 : 81,849.99 = 42,579.10 : x
2. Step 2: Convert to fraction form
   59,297.50/81,849.99 = 42,579.10/x
3. Step 3: Cross multiply
   59,297.50x = 81,849.99 × 42,579.10
4. Step 4: Simplify right side
   59,297.50x = 3,485,098,909.21
5. Step 5: Solve for x
   x = 3,485,098,909.21/59,297.50
6. Step 6: Final answer
   x = 58,773.12