Finding the Fourth Proportional to 117,196.65, 161,719.83 and 65,504.22

Step by Step Solution

1. Step 1: Write the proportion equation
   117,196.65 : 161,719.83 = 65,504.22 : x
2. Step 2: Convert to fraction form
   117,196.65/161,719.83 = 65,504.22/x
3. Step 3: Cross multiply
   117,196.65x = 161,719.83 × 65,504.22
4. Step 4: Simplify right side
   117,196.65x = 10,593,331,322.68
5. Step 5: Solve for x
   x = 10,593,331,322.68/117,196.65
6. Step 6: Final answer
   x = 90,389.37