Finding the Fourth Proportional to 118,348.52, 163,320.12 and 64,633.55

Step by Step Solution

1. Step 1: Write the proportion equation
   118,348.52 : 163,320.12 = 64,633.55 : x
2. Step 2: Convert to fraction form
   118,348.52/163,320.12 = 64,633.55/x
3. Step 3: Cross multiply
   118,348.52x = 163,320.12 × 64,633.55
4. Step 4: Simplify right side
   118,348.52x = 10,555,958,325.43
5. Step 5: Solve for x
   x = 10,555,958,325.43/118,348.52
6. Step 6: Final answer
   x = 89,193.84