Finding the Fourth Proportional to 77,176.17, 106,479.50 and 50,308.88

Step by Step Solution

1. Step 1: Write the proportion equation
   77,176.17 : 106,479.50 = 50,308.88 : x
2. Step 2: Convert to fraction form
   77,176.17/106,479.50 = 50,308.88/x
3. Step 3: Cross multiply
   77,176.17x = 106,479.50 × 50,308.88
4. Step 4: Simplify right side
   77,176.17x = 5,356,863,604.02
5. Step 5: Solve for x
   x = 5,356,863,604.02/77,176.17
6. Step 6: Final answer
   x = 69,410.85