Finding the Fourth Proportional to 118,716.16, 163,828.32 and 65,004.51

Step by Step Solution

1. Step 1: Write the proportion equation
   118,716.16 : 163,828.32 = 65,004.51 : x
2. Step 2: Convert to fraction form
   118,716.16/163,828.32 = 65,004.51/x
3. Step 3: Cross multiply
   118,716.16x = 163,828.32 × 65,004.51
4. Step 4: Simplify right side
   118,716.16x = 10,649,579,665.72
5. Step 5: Solve for x
   x = 10,649,579,665.72/118,716.16
6. Step 6: Final answer
   x = 89,706.23