Finding the Fourth Proportional to 76,786.08, 115,179.18 and 50,607.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,786.08 : 115,179.18 = 50,607.72 : x
2. Step 2: Convert to fraction form
   76,786.08/115,179.18 = 50,607.72/x
3. Step 3: Cross multiply
   76,786.08x = 115,179.18 × 50,607.72
4. Step 4: Simplify right side
   76,786.08x = 5,828,955,691.27
5. Step 5: Solve for x
   x = 5,828,955,691.27/76,786.08
6. Step 6: Final answer
   x = 75,911.62