Finding the Fourth Proportional to 276,934.28, 415,404.71 and 77,242.52

Step by Step Solution

1. Step 1: Write the proportion equation
   276,934.28 : 415,404.71 = 77,242.52 : x
2. Step 2: Convert to fraction form
   276,934.28/415,404.71 = 77,242.52/x
3. Step 3: Cross multiply
   276,934.28x = 415,404.71 × 77,242.52
4. Step 4: Simplify right side
   276,934.28x = 32,086,906,620.27
5. Step 5: Solve for x
   x = 32,086,906,620.27/276,934.28
6. Step 6: Final answer
   x = 115,864.70