Finding the Fourth Proportional to 78,716.62, 118,091.79 and 28,796.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,716.62 : 118,091.79 = 28,796.52 : x
2. Step 2: Convert to fraction form
   78,716.62/118,091.79 = 28,796.52/x
3. Step 3: Cross multiply
   78,716.62x = 118,091.79 × 28,796.52
4. Step 4: Simplify right side
   78,716.62x = 3,400,633,035.42
5. Step 5: Solve for x
   x = 3,400,633,035.42/78,716.62
6. Step 6: Final answer
   x = 43,200.95