Finding the Fourth Proportional to 81,066.13, 111,873.15 and 50,852.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,066.13 : 111,873.15 = 50,852.72 : x
2. Step 2: Convert to fraction form
   81,066.13/111,873.15 = 50,852.72/x
3. Step 3: Cross multiply
   81,066.13x = 111,873.15 × 50,852.72
4. Step 4: Simplify right side
   81,066.13x = 5,689,054,252.15
5. Step 5: Solve for x
   x = 5,689,054,252.15/81,066.13
6. Step 6: Final answer
   x = 70,177.95