Finding the Fourth Proportional to 118,016.79, 177,058.03 and 51,462.78

Step by Step Solution

1. Step 1: Write the proportion equation
   118,016.79 : 177,058.03 = 51,462.78 : x
2. Step 2: Convert to fraction form
   118,016.79/177,058.03 = 51,462.78/x
3. Step 3: Cross multiply
   118,016.79x = 177,058.03 × 51,462.78
4. Step 4: Simplify right side
   118,016.79x = 9,111,898,445.12
5. Step 5: Solve for x
   x = 9,111,898,445.12/118,016.79
6. Step 6: Final answer
   x = 77,208.49