Finding the Fourth Proportional to 117,162.69, 161,683.71 and 63,446.48

Step by Step Solution

1. Step 1: Write the proportion equation
   117,162.69 : 161,683.71 = 63,446.48 : x
2. Step 2: Convert to fraction form
   117,162.69/161,683.71 = 63,446.48/x
3. Step 3: Cross multiply
   117,162.69x = 161,683.71 × 63,446.48
4. Step 4: Simplify right side
   117,162.69x = 10,258,262,272.84
5. Step 5: Solve for x
   x = 10,258,262,272.84/117,162.69
6. Step 6: Final answer
   x = 87,555.71