Finding the Fourth Proportional to 50,697.96, 69,917.74 and 42,228.19

Step by Step Solution

1. Step 1: Write the proportion equation
   50,697.96 : 69,917.74 = 42,228.19 : x
2. Step 2: Convert to fraction form
   50,697.96/69,917.74 = 42,228.19/x
3. Step 3: Cross multiply
   50,697.96x = 69,917.74 × 42,228.19
4. Step 4: Simplify right side
   50,697.96x = 2,952,499,609.09
5. Step 5: Solve for x
   x = 2,952,499,609.09/50,697.96
6. Step 6: Final answer
   x = 58,237.05