Finding the Fourth Proportional to 50,099.36, 68,979.75 and 42,530

Step by Step Solution

1. Step 1: Write the proportion equation
   50,099.36 : 68,979.75 = 42,530 : x
2. Step 2: Convert to fraction form
   50,099.36/68,979.75 = 42,530/x
3. Step 3: Cross multiply
   50,099.36x = 68,979.75 × 42,530
4. Step 4: Simplify right side
   50,099.36x = 2,933,708,767.50
5. Step 5: Solve for x
   x = 2,933,708,767.50/50,099.36
6. Step 6: Final answer
   x = 58,557.81