Finding the Fourth Proportional to 111,757.92, 166,584.04 and 102,789.87

Step by Step Solution

1. Step 1: Write the proportion equation
   111,757.92 : 166,584.04 = 102,789.87 : x
2. Step 2: Convert to fraction form
   111,757.92/166,584.04 = 102,789.87/x
3. Step 3: Cross multiply
   111,757.92x = 166,584.04 × 102,789.87
4. Step 4: Simplify right side
   111,757.92x = 17,123,151,815.67
5. Step 5: Solve for x
   x = 17,123,151,815.67/111,757.92
6. Step 6: Final answer
   x = 153,216.45