Finding the Fourth Proportional to 81,067.72, 111,868.76 and 45,260

Step by Step Solution

1. Step 1: Write the proportion equation
   81,067.72 : 111,868.76 = 45,260 : x
2. Step 2: Convert to fraction form
   81,067.72/111,868.76 = 45,260/x
3. Step 3: Cross multiply
   81,067.72x = 111,868.76 × 45,260
4. Step 4: Simplify right side
   81,067.72x = 5,063,180,077.60
5. Step 5: Solve for x
   x = 5,063,180,077.60/81,067.72
6. Step 6: Final answer
   x = 62,456.18