Finding the Fourth Proportional to 78,844.08, 118,301.34 and 42,831.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,844.08 : 118,301.34 = 42,831.48 : x
2. Step 2: Convert to fraction form
   78,844.08/118,301.34 = 42,831.48/x
3. Step 3: Cross multiply
   78,844.08x = 118,301.34 × 42,831.48
4. Step 4: Simplify right side
   78,844.08x = 5,067,021,478.18
5. Step 5: Solve for x
   x = 5,067,021,478.18/78,844.08
6. Step 6: Final answer
   x = 64,266.35