Finding the Fourth Proportional to 76,362.40, 105,434.76 and 50,928.82

Step by Step Solution

1. Step 1: Write the proportion equation
   76,362.40 : 105,434.76 = 50,928.82 : x
2. Step 2: Convert to fraction form
   76,362.40/105,434.76 = 50,928.82/x
3. Step 3: Cross multiply
   76,362.40x = 105,434.76 × 50,928.82
4. Step 4: Simplify right side
   76,362.40x = 5,369,667,913.78
5. Step 5: Solve for x
   x = 5,369,667,913.78/76,362.40
6. Step 6: Final answer
   x = 70,318.22