Finding the Fourth Proportional to 76,630.83, 105,677.78 and 50,743.23

Step by Step Solution

1. Step 1: Write the proportion equation
   76,630.83 : 105,677.78 = 50,743.23 : x
2. Step 2: Convert to fraction form
   76,630.83/105,677.78 = 50,743.23/x
3. Step 3: Cross multiply
   76,630.83x = 105,677.78 × 50,743.23
4. Step 4: Simplify right side
   76,630.83x = 5,362,431,642.71
5. Step 5: Solve for x
   x = 5,362,431,642.71/76,630.83
6. Step 6: Final answer
   x = 69,977.47