Finding the Fourth Proportional to 118,003.11, 162,843.39 and 64,287.96

Step by Step Solution

1. Step 1: Write the proportion equation
   118,003.11 : 162,843.39 = 64,287.96 : x
2. Step 2: Convert to fraction form
   118,003.11/162,843.39 = 64,287.96/x
3. Step 3: Cross multiply
   118,003.11x = 162,843.39 × 64,287.96
4. Step 4: Simplify right side
   118,003.11x = 10,468,869,342.58
5. Step 5: Solve for x
   x = 10,468,869,342.58/118,003.11
6. Step 6: Final answer
   x = 88,716.89