Finding the Fourth Proportional to 117,196.27, 161,730.78 and 63,481.15

Step by Step Solution

1. Step 1: Write the proportion equation
   117,196.27 : 161,730.78 = 63,481.15 : x
2. Step 2: Convert to fraction form
   117,196.27/161,730.78 = 63,481.15/x
3. Step 3: Cross multiply
   117,196.27x = 161,730.78 × 63,481.15
4. Step 4: Simplify right side
   117,196.27x = 10,266,855,904.80
5. Step 5: Solve for x
   x = 10,266,855,904.80/117,196.27
6. Step 6: Final answer
   x = 87,603.95