Finding the Fourth Proportional to 59,296.50, 81,848.61 and 42,578.10

Step by Step Solution

1. Step 1: Write the proportion equation
   59,296.50 : 81,848.61 = 42,578.10 : x
2. Step 2: Convert to fraction form
   59,296.50/81,848.61 = 42,578.10/x
3. Step 3: Cross multiply
   59,296.50x = 81,848.61 × 42,578.10
4. Step 4: Simplify right side
   59,296.50x = 3,484,958,301.44
5. Step 5: Solve for x
   x = 3,484,958,301.44/59,296.50
6. Step 6: Final answer
   x = 58,771.74