Finding the Fourth Proportional to 81,109.35, 111,923.37 and 52,429.68

Step by Step Solution

1. Step 1: Write the proportion equation
   81,109.35 : 111,923.37 = 52,429.68 : x
2. Step 2: Convert to fraction form
   81,109.35/111,923.37 = 52,429.68/x
3. Step 3: Cross multiply
   81,109.35x = 111,923.37 × 52,429.68
4. Step 4: Simplify right side
   81,109.35x = 5,868,106,473.62
5. Step 5: Solve for x
   x = 5,868,106,473.62/81,109.35
6. Step 6: Final answer
   x = 72,348.09