Finding the Fourth Proportional to 76,234.10, 105,239.86 and 50,783.36

Step by Step Solution

1. Step 1: Write the proportion equation
   76,234.10 : 105,239.86 = 50,783.36 : x
2. Step 2: Convert to fraction form
   76,234.10/105,239.86 = 50,783.36/x
3. Step 3: Cross multiply
   76,234.10x = 105,239.86 × 50,783.36
4. Step 4: Simplify right side
   76,234.10x = 5,344,433,043.57
5. Step 5: Solve for x
   x = 5,344,433,043.57/76,234.10
6. Step 6: Final answer
   x = 70,105.55