Finding the Fourth Proportional to 118,585.89, 163,651.59 and 64,873.17

Step by Step Solution

1. Step 1: Write the proportion equation
   118,585.89 : 163,651.59 = 64,873.17 : x
2. Step 2: Convert to fraction form
   118,585.89/163,651.59 = 64,873.17/x
3. Step 3: Cross multiply
   118,585.89x = 163,651.59 × 64,873.17
4. Step 4: Simplify right side
   118,585.89x = 10,616,597,418.84
5. Step 5: Solve for x
   x = 10,616,597,418.84/118,585.89
6. Step 6: Final answer
   x = 89,526.65