Finding the Fourth Proportional to 86,096.98, 118,846.06 and 64,648.68

Step by Step Solution

1. Step 1: Write the proportion equation
   86,096.98 : 118,846.06 = 64,648.68 : x
2. Step 2: Convert to fraction form
   86,096.98/118,846.06 = 64,648.68/x
3. Step 3: Cross multiply
   86,096.98x = 118,846.06 × 64,648.68
4. Step 4: Simplify right side
   86,096.98x = 7,683,240,902.20
5. Step 5: Solve for x
   x = 7,683,240,902.20/86,096.98
6. Step 6: Final answer
   x = 89,239.38