Finding the Fourth Proportional to 77,504.94, 116,256.78 and 51,326.82

Step by Step Solution

1. Step 1: Write the proportion equation
   77,504.94 : 116,256.78 = 51,326.82 : x
2. Step 2: Convert to fraction form
   77,504.94/116,256.78 = 51,326.82/x
3. Step 3: Cross multiply
   77,504.94x = 116,256.78 × 51,326.82
4. Step 4: Simplify right side
   77,504.94x = 5,967,090,820.84
5. Step 5: Solve for x
   x = 5,967,090,820.84/77,504.94
6. Step 6: Final answer
   x = 76,989.81