Finding the Fourth Proportional to 117,911.97, 162,717.54 and 64,196.88

Step by Step Solution

1. Step 1: Write the proportion equation
   117,911.97 : 162,717.54 = 64,196.88 : x
2. Step 2: Convert to fraction form
   117,911.97/162,717.54 = 64,196.88/x
3. Step 3: Cross multiply
   117,911.97x = 162,717.54 × 64,196.88
4. Step 4: Simplify right side
   117,911.97x = 10,445,958,389.28
5. Step 5: Solve for x
   x = 10,445,958,389.28/117,911.97
6. Step 6: Final answer
   x = 88,591.16