Finding the Fourth Proportional to 78,939.22, 108,937.69 and 43,131.45

Step by Step Solution

1. Step 1: Write the proportion equation
   78,939.22 : 108,937.69 = 43,131.45 : x
2. Step 2: Convert to fraction form
   78,939.22/108,937.69 = 43,131.45/x
3. Step 3: Cross multiply
   78,939.22x = 108,937.69 × 43,131.45
4. Step 4: Simplify right side
   78,939.22x = 4,698,640,421.52
5. Step 5: Solve for x
   x = 4,698,640,421.52/78,939.22
6. Step 6: Final answer
   x = 59,522.26