Finding the Fourth Proportional to 118,649.69, 163,734.38 and 64,933.62

Step by Step Solution

1. Step 1: Write the proportion equation
   118,649.69 : 163,734.38 = 64,933.62 : x
2. Step 2: Convert to fraction form
   118,649.69/163,734.38 = 64,933.62/x
3. Step 3: Cross multiply
   118,649.69x = 163,734.38 × 64,933.62
4. Step 4: Simplify right side
   118,649.69x = 10,631,865,687.19
5. Step 5: Solve for x
   x = 10,631,865,687.19/118,649.69
6. Step 6: Final answer
   x = 89,607.20