Finding the Fourth Proportional to 111,966.12, 154,501.82 and 68,938.78

Step by Step Solution

1. Step 1: Write the proportion equation
   111,966.12 : 154,501.82 = 68,938.78 : x
2. Step 2: Convert to fraction form
   111,966.12/154,501.82 = 68,938.78/x
3. Step 3: Cross multiply
   111,966.12x = 154,501.82 × 68,938.78
4. Step 4: Simplify right side
   111,966.12x = 10,651,166,978.58
5. Step 5: Solve for x
   x = 10,651,166,978.58/111,966.12
6. Step 6: Final answer
   x = 95,128.48