Finding the Fourth Proportional to 78,939.34, 108,937.86 and 43,131.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,939.34 : 108,937.86 = 43,131.58 : x
2. Step 2: Convert to fraction form
   78,939.34/108,937.86 = 43,131.58/x
3. Step 3: Cross multiply
   78,939.34x = 108,937.86 × 43,131.58
4. Step 4: Simplify right side
   78,939.34x = 4,698,662,023.62
5. Step 5: Solve for x
   x = 4,698,662,023.62/78,939.34
6. Step 6: Final answer
   x = 59,522.44