Finding the Fourth Proportional to 81,067.47, 111,841.34 and 47,070.15

Step by Step Solution

1. Step 1: Write the proportion equation
   81,067.47 : 111,841.34 = 47,070.15 : x
2. Step 2: Convert to fraction form
   81,067.47/111,841.34 = 47,070.15/x
3. Step 3: Cross multiply
   81,067.47x = 111,841.34 × 47,070.15
4. Step 4: Simplify right side
   81,067.47x = 5,264,388,414.65
5. Step 5: Solve for x
   x = 5,264,388,414.65/81,067.47
6. Step 6: Final answer
   x = 64,938.36