Finding the Fourth Proportional to 78,716.78, 118,083.50 and 28,801.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,716.78 : 118,083.50 = 28,801.34 : x
2. Step 2: Convert to fraction form
   78,716.78/118,083.50 = 28,801.34/x
3. Step 3: Cross multiply
   78,716.78x = 118,083.50 × 28,801.34
4. Step 4: Simplify right side
   78,716.78x = 3,400,962,887.88
5. Step 5: Solve for x
   x = 3,400,962,887.88/78,716.78
6. Step 6: Final answer
   x = 43,205.06