Finding the Fourth Proportional to 118,197.69, 163,109.59 and 64,482.69

Step by Step Solution

1. Step 1: Write the proportion equation
   118,197.69 : 163,109.59 = 64,482.69 : x
2. Step 2: Convert to fraction form
   118,197.69/163,109.59 = 64,482.69/x
3. Step 3: Cross multiply
   118,197.69x = 163,109.59 × 64,482.69
4. Step 4: Simplify right side
   118,197.69x = 10,517,745,578.45
5. Step 5: Solve for x
   x = 10,517,745,578.45/118,197.69
6. Step 6: Final answer
   x = 88,984.36