Finding the Fourth Proportional to 117,731.37, 162,468.40 and 64,016.43

Step by Step Solution

1. Step 1: Write the proportion equation
   117,731.37 : 162,468.40 = 64,016.43 : x
2. Step 2: Convert to fraction form
   117,731.37/162,468.40 = 64,016.43/x
3. Step 3: Cross multiply
   117,731.37x = 162,468.40 × 64,016.43
4. Step 4: Simplify right side
   117,731.37x = 10,400,646,955.81
5. Step 5: Solve for x
   x = 10,400,646,955.81/117,731.37
6. Step 6: Final answer
   x = 88,342.19