Finding the Fourth Proportional to 111,608.78, 153,935.71 and 77,600.23

Step by Step Solution

1. Step 1: Write the proportion equation
   111,608.78 : 153,935.71 = 77,600.23 : x
2. Step 2: Convert to fraction form
   111,608.78/153,935.71 = 77,600.23/x
3. Step 3: Cross multiply
   111,608.78x = 153,935.71 × 77,600.23
4. Step 4: Simplify right side
   111,608.78x = 11,945,445,922.37
5. Step 5: Solve for x
   x = 11,945,445,922.37/111,608.78
6. Step 6: Final answer
   x = 107,029.63