Finding the Fourth Proportional to 78,410.82, 116,786.28 and 78,028.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,410.82 : 116,786.28 = 78,028.52 : x
2. Step 2: Convert to fraction form
   78,410.82/116,786.28 = 78,028.52/x
3. Step 3: Cross multiply
   78,410.82x = 116,786.28 × 78,028.52
4. Step 4: Simplify right side
   78,410.82x = 9,112,660,584.71
5. Step 5: Solve for x
   x = 9,112,660,584.71/78,410.82
6. Step 6: Final answer
   x = 116,216.88