Finding the Fourth Proportional to 118,649.94, 163,734.72 and 64,933.87

Step by Step Solution

1. Step 1: Write the proportion equation
   118,649.94 : 163,734.72 = 64,933.87 : x
2. Step 2: Convert to fraction form
   118,649.94/163,734.72 = 64,933.87/x
3. Step 3: Cross multiply
   118,649.94x = 163,734.72 × 64,933.87
4. Step 4: Simplify right side
   118,649.94x = 10,631,929,022.97
5. Step 5: Solve for x
   x = 10,631,929,022.97/118,649.94
6. Step 6: Final answer
   x = 89,607.54