Finding the Fourth Proportional to 79,890.96, 119,847.78 and 42,441.24

Step by Step Solution

1. Step 1: Write the proportion equation
   79,890.96 : 119,847.78 = 42,441.24 : x
2. Step 2: Convert to fraction form
   79,890.96/119,847.78 = 42,441.24/x
3. Step 3: Cross multiply
   79,890.96x = 119,847.78 × 42,441.24
4. Step 4: Simplify right side
   79,890.96x = 5,086,488,394.45
5. Step 5: Solve for x
   x = 5,086,488,394.45/79,890.96
6. Step 6: Final answer
   x = 63,667.88