Finding the Fourth Proportional to 85,385.56, 117,831.78 and 47,659.48

Step by Step Solution

1. Step 1: Write the proportion equation
   85,385.56 : 117,831.78 = 47,659.48 : x
2. Step 2: Convert to fraction form
   85,385.56/117,831.78 = 47,659.48/x
3. Step 3: Cross multiply
   85,385.56x = 117,831.78 × 47,659.48
4. Step 4: Simplify right side
   85,385.56x = 5,615,801,362.27
5. Step 5: Solve for x
   x = 5,615,801,362.27/85,385.56
6. Step 6: Final answer
   x = 65,769.92