Finding the Fourth Proportional to 111,951.18, 154,494.27 and 64,208.97

Step by Step Solution

1. Step 1: Write the proportion equation
   111,951.18 : 154,494.27 = 64,208.97 : x
2. Step 2: Convert to fraction form
   111,951.18/154,494.27 = 64,208.97/x
3. Step 3: Cross multiply
   111,951.18x = 154,494.27 × 64,208.97
4. Step 4: Simplify right side
   111,951.18x = 9,919,917,947.60
5. Step 5: Solve for x
   x = 9,919,917,947.60/111,951.18
6. Step 6: Final answer
   x = 88,609.32