Finding the Fourth Proportional to 118,559.34, 163,615.41 and 64,843.38

Step by Step Solution

1. Step 1: Write the proportion equation
   118,559.34 : 163,615.41 = 64,843.38 : x
2. Step 2: Convert to fraction form
   118,559.34/163,615.41 = 64,843.38/x
3. Step 3: Cross multiply
   118,559.34x = 163,615.41 × 64,843.38
4. Step 4: Simplify right side
   118,559.34x = 10,609,376,204.49
5. Step 5: Solve for x
   x = 10,609,376,204.49/118,559.34
6. Step 6: Final answer
   x = 89,485.79