Finding the Fourth Proportional to 111,790.14, 154,270.28 and 64,043.69

Step by Step Solution

1. Step 1: Write the proportion equation
   111,790.14 : 154,270.28 = 64,043.69 : x
2. Step 2: Convert to fraction form
   111,790.14/154,270.28 = 64,043.69/x
3. Step 3: Cross multiply
   111,790.14x = 154,270.28 × 64,043.69
4. Step 4: Simplify right side
   111,790.14x = 9,880,036,896.96
5. Step 5: Solve for x
   x = 9,880,036,896.96/111,790.14
6. Step 6: Final answer
   x = 88,380.22