Finding the Fourth Proportional to 85,498.44, 117,987.60 and 47,772.72

Step by Step Solution

1. Step 1: Write the proportion equation
   85,498.44 : 117,987.60 = 47,772.72 : x
2. Step 2: Convert to fraction form
   85,498.44/117,987.60 = 47,772.72/x
3. Step 3: Cross multiply
   85,498.44x = 117,987.60 × 47,772.72
4. Step 4: Simplify right side
   85,498.44x = 5,636,588,578.27
5. Step 5: Solve for x
   x = 5,636,588,578.27/85,498.44
6. Step 6: Final answer
   x = 65,926.22