Finding the Fourth Proportional to 109,395.93, 151,016.78 and 64,067.61

Step by Step Solution

1. Step 1: Write the proportion equation
   109,395.93 : 151,016.78 = 64,067.61 : x
2. Step 2: Convert to fraction form
   109,395.93/151,016.78 = 64,067.61/x
3. Step 3: Cross multiply
   109,395.93x = 151,016.78 × 64,067.61
4. Step 4: Simplify right side
   109,395.93x = 9,675,284,324.66
5. Step 5: Solve for x
   x = 9,675,284,324.66/109,395.93
6. Step 6: Final answer
   x = 88,442.82