Finding the Fourth Proportional to 111,793.98, 154,274.94 and 63,405.12

Step by Step Solution

1. Step 1: Write the proportion equation
   111,793.98 : 154,274.94 = 63,405.12 : x
2. Step 2: Convert to fraction form
   111,793.98/154,274.94 = 63,405.12/x
3. Step 3: Cross multiply
   111,793.98x = 154,274.94 × 63,405.12
4. Step 4: Simplify right side
   111,793.98x = 9,781,821,083.69
5. Step 5: Solve for x
   x = 9,781,821,083.69/111,793.98
6. Step 6: Final answer
   x = 87,498.64