Finding the Fourth Proportional to 118,967.50, 164,175.15 and 65,975.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,967.50 : 164,175.15 = 65,975.50 : x
2. Step 2: Convert to fraction form
   118,967.50/164,175.15 = 65,975.50/x
3. Step 3: Cross multiply
   118,967.50x = 164,175.15 × 65,975.50
4. Step 4: Simplify right side
   118,967.50x = 10,831,537,608.83
5. Step 5: Solve for x
   x = 10,831,537,608.83/118,967.50
6. Step 6: Final answer
   x = 91,046.19