Finding the Fourth Proportional to 117,111.92, 161,613.68 and 63,395.75

Step by Step Solution

1. Step 1: Write the proportion equation
   117,111.92 : 161,613.68 = 63,395.75 : x
2. Step 2: Convert to fraction form
   117,111.92/161,613.68 = 63,395.75/x
3. Step 3: Cross multiply
   117,111.92x = 161,613.68 × 63,395.75
4. Step 4: Simplify right side
   117,111.92x = 10,245,619,328.81
5. Step 5: Solve for x
   x = 10,245,619,328.81/117,111.92
6. Step 6: Final answer
   x = 87,485.71