Finding the Fourth Proportional to 276,733.69, 415,093.23 and 77,046.01

Step by Step Solution

1. Step 1: Write the proportion equation
   276,733.69 : 415,093.23 = 77,046.01 : x
2. Step 2: Convert to fraction form
   276,733.69/415,093.23 = 77,046.01/x
3. Step 3: Cross multiply
   276,733.69x = 415,093.23 × 77,046.01
4. Step 4: Simplify right side
   276,733.69x = 31,981,276,111.78
5. Step 5: Solve for x
   x = 31,981,276,111.78/276,733.69
6. Step 6: Final answer
   x = 115,566.98