Finding the Fourth Proportional to 85,498.69, 117,987.94 and 47,772.97

Step by Step Solution

1. Step 1: Write the proportion equation
   85,498.69 : 117,987.94 = 47,772.97 : x
2. Step 2: Convert to fraction form
   85,498.69/117,987.94 = 47,772.97/x
3. Step 3: Cross multiply
   85,498.69x = 117,987.94 × 47,772.97
4. Step 4: Simplify right side
   85,498.69x = 5,636,634,317.98
5. Step 5: Solve for x
   x = 5,636,634,317.98/85,498.69
6. Step 6: Final answer
   x = 65,926.56