Finding the Fourth Proportional to 117,727.48, 162,460.32 and 64,012.60

Step by Step Solution

1. Step 1: Write the proportion equation
   117,727.48 : 162,460.32 = 64,012.60 : x
2. Step 2: Convert to fraction form
   117,727.48/162,460.32 = 64,012.60/x
3. Step 3: Cross multiply
   117,727.48x = 162,460.32 × 64,012.60
4. Step 4: Simplify right side
   117,727.48x = 10,399,507,480.03
5. Step 5: Solve for x
   x = 10,399,507,480.03/117,727.48
6. Step 6: Final answer
   x = 88,335.43