Finding the Fourth Proportional to 111,780.33, 154,274.83 and 65,847.39

Step by Step Solution

1. Step 1: Write the proportion equation
   111,780.33 : 154,274.83 = 65,847.39 : x
2. Step 2: Convert to fraction form
   111,780.33/154,274.83 = 65,847.39/x
3. Step 3: Cross multiply
   111,780.33x = 154,274.83 × 65,847.39
4. Step 4: Simplify right side
   111,780.33x = 10,158,594,733.58
5. Step 5: Solve for x
   x = 10,158,594,733.58/111,780.33
6. Step 6: Final answer
   x = 90,879.99