Finding the Fourth Proportional to 59,770.20, 82,429.56 and 42,508.70

Step by Step Solution

1. Step 1: Write the proportion equation
   59,770.20 : 82,429.56 = 42,508.70 : x
2. Step 2: Convert to fraction form
   59,770.20/82,429.56 = 42,508.70/x
3. Step 3: Cross multiply
   59,770.20x = 82,429.56 × 42,508.70
4. Step 4: Simplify right side
   59,770.20x = 3,503,972,812.48
5. Step 5: Solve for x
   x = 3,503,972,812.48/59,770.20
6. Step 6: Final answer
   x = 58,624.08