Finding the Fourth Proportional to 76,888.79, 106,150.12 and 50,017.85

Step by Step Solution

1. Step 1: Write the proportion equation
   76,888.79 : 106,150.12 = 50,017.85 : x
2. Step 2: Convert to fraction form
   76,888.79/106,150.12 = 50,017.85/x
3. Step 3: Cross multiply
   76,888.79x = 106,150.12 × 50,017.85
4. Step 4: Simplify right side
   76,888.79x = 5,309,400,123.85
5. Step 5: Solve for x
   x = 5,309,400,123.85/76,888.79
6. Step 6: Final answer
   x = 69,052.99