Finding the Fourth Proportional to 59,586.48, 89,243.58 and 28,443.60

Step by Step Solution

1. Step 1: Write the proportion equation
   59,586.48 : 89,243.58 = 28,443.60 : x
2. Step 2: Convert to fraction form
   59,586.48/89,243.58 = 28,443.60/x
3. Step 3: Cross multiply
   59,586.48x = 89,243.58 × 28,443.60
4. Step 4: Simplify right side
   59,586.48x = 2,538,408,692.09
5. Step 5: Solve for x
   x = 2,538,408,692.09/59,586.48
6. Step 6: Final answer
   x = 42,600.41