Finding the Fourth Proportional to 117,742.86, 162,485.91 and 64,028.46

Step by Step Solution

1. Step 1: Write the proportion equation
   117,742.86 : 162,485.91 = 64,028.46 : x
2. Step 2: Convert to fraction form
   117,742.86/162,485.91 = 64,028.46/x
3. Step 3: Cross multiply
   117,742.86x = 162,485.91 × 64,028.46
4. Step 4: Simplify right side
   117,742.86x = 10,403,722,589.00
5. Step 5: Solve for x
   x = 10,403,722,589.00/117,742.86
6. Step 6: Final answer
   x = 88,359.69