Finding the Fourth Proportional to 78,940.58, 108,936.72 and 43,129.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,940.58 : 108,936.72 = 43,129.82 : x
2. Step 2: Convert to fraction form
   78,940.58/108,936.72 = 43,129.82/x
3. Step 3: Cross multiply
   78,940.58x = 108,936.72 × 43,129.82
4. Step 4: Simplify right side
   78,940.58x = 4,698,420,960.47
5. Step 5: Solve for x
   x = 4,698,420,960.47/78,940.58
6. Step 6: Final answer
   x = 59,518.45