Finding the Fourth Proportional to 118,002.98, 162,843.44 and 64,287.86

Step by Step Solution

1. Step 1: Write the proportion equation
   118,002.98 : 162,843.44 = 64,287.86 : x
2. Step 2: Convert to fraction form
   118,002.98/162,843.44 = 64,287.86/x
3. Step 3: Cross multiply
   118,002.98x = 162,843.44 × 64,287.86
4. Step 4: Simplify right side
   118,002.98x = 10,468,856,272.64
5. Step 5: Solve for x
   x = 10,468,856,272.64/118,002.98
6. Step 6: Final answer
   x = 88,716.88