Finding the Fourth Proportional to 76,020.16, 104,910.78 and 50,482.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,020.16 : 104,910.78 = 50,482.50 : x
2. Step 2: Convert to fraction form
   76,020.16/104,910.78 = 50,482.50/x
3. Step 3: Cross multiply
   76,020.16x = 104,910.78 × 50,482.50
4. Step 4: Simplify right side
   76,020.16x = 5,296,158,451.35
5. Step 5: Solve for x
   x = 5,296,158,451.35/76,020.16
6. Step 6: Final answer
   x = 69,667.82