Finding the Fourth Proportional to 117,729.21, 162,465.51 and 64,014.27

Step by Step Solution

1. Step 1: Write the proportion equation
   117,729.21 : 162,465.51 = 64,014.27 : x
2. Step 2: Convert to fraction form
   117,729.21/162,465.51 = 64,014.27/x
3. Step 3: Cross multiply
   117,729.21x = 162,465.51 × 64,014.27
4. Step 4: Simplify right side
   117,729.21x = 10,400,111,022.83
5. Step 5: Solve for x
   x = 10,400,111,022.83/117,729.21
6. Step 6: Final answer
   x = 88,339.26