Finding the Fourth Proportional to 81,078.42, 111,943.53 and 52,833.30

Step by Step Solution

1. Step 1: Write the proportion equation
   81,078.42 : 111,943.53 = 52,833.30 : x
2. Step 2: Convert to fraction form
   81,078.42/111,943.53 = 52,833.30/x
3. Step 3: Cross multiply
   81,078.42x = 111,943.53 × 52,833.30
4. Step 4: Simplify right side
   81,078.42x = 5,914,346,103.55
5. Step 5: Solve for x
   x = 5,914,346,103.55/81,078.42
6. Step 6: Final answer
   x = 72,946.00