Finding the Fourth Proportional to 117,727.20, 162,462.69 and 64,012.23

Step by Step Solution

1. Step 1: Write the proportion equation
   117,727.20 : 162,462.69 = 64,012.23 : x
2. Step 2: Convert to fraction form
   117,727.20/162,462.69 = 64,012.23/x
3. Step 3: Cross multiply
   117,727.20x = 162,462.69 × 64,012.23
4. Step 4: Simplify right side
   117,727.20x = 10,399,599,078.70
5. Step 5: Solve for x
   x = 10,399,599,078.70/117,727.20
6. Step 6: Final answer
   x = 88,336.42