Finding the Fourth Proportional to 118,715.16, 163,826.94 and 65,003.51

Step by Step Solution

1. Step 1: Write the proportion equation
   118,715.16 : 163,826.94 = 65,003.51 : x
2. Step 2: Convert to fraction form
   118,715.16/163,826.94 = 65,003.51/x
3. Step 3: Cross multiply
   118,715.16x = 163,826.94 × 65,003.51
4. Step 4: Simplify right side
   118,715.16x = 10,649,325,313.42
5. Step 5: Solve for x
   x = 10,649,325,313.42/118,715.16
6. Step 6: Final answer
   x = 89,704.85