Finding the Fourth Proportional to 118,968.58, 164,187.16 and 65,264.06

Step by Step Solution

1. Step 1: Write the proportion equation
   118,968.58 : 164,187.16 = 65,264.06 : x
2. Step 2: Convert to fraction form
   118,968.58/164,187.16 = 65,264.06/x
3. Step 3: Cross multiply
   118,968.58x = 164,187.16 × 65,264.06
4. Step 4: Simplify right side
   118,968.58x = 10,715,520,661.47
5. Step 5: Solve for x
   x = 10,715,520,661.47/118,968.58
6. Step 6: Final answer
   x = 90,070.17