Finding the Fourth Proportional to 118,708.82, 163,818.18 and 64,993.84

Step by Step Solution

1. Step 1: Write the proportion equation
   118,708.82 : 163,818.18 = 64,993.84 : x
2. Step 2: Convert to fraction form
   118,708.82/163,818.18 = 64,993.84/x
3. Step 3: Cross multiply
   118,708.82x = 163,818.18 × 64,993.84
4. Step 4: Simplify right side
   118,708.82x = 10,647,172,580.01
5. Step 5: Solve for x
   x = 10,647,172,580.01/118,708.82
6. Step 6: Final answer
   x = 89,691.50