Finding the Fourth Proportional to 118,632.09, 163,714.91 and 64,917.08

Step by Step Solution

1. Step 1: Write the proportion equation
   118,632.09 : 163,714.91 = 64,917.08 : x
2. Step 2: Convert to fraction form
   118,632.09/163,714.91 = 64,917.08/x
3. Step 3: Cross multiply
   118,632.09x = 163,714.91 × 64,917.08
4. Step 4: Simplify right side
   118,632.09x = 10,627,892,766.50
5. Step 5: Solve for x
   x = 10,627,892,766.50/118,632.09
6. Step 6: Final answer
   x = 89,587.00