Finding the Fourth Proportional to 85,456.35, 117,851.76 and 65,275.74

Step by Step Solution

1. Step 1: Write the proportion equation
   85,456.35 : 117,851.76 = 65,275.74 : x
2. Step 2: Convert to fraction form
   85,456.35/117,851.76 = 65,275.74/x
3. Step 3: Cross multiply
   85,456.35x = 117,851.76 × 65,275.74
4. Step 4: Simplify right side
   85,456.35x = 7,692,860,844.30
5. Step 5: Solve for x
   x = 7,692,860,844.30/85,456.35
6. Step 6: Final answer
   x = 90,020.94