Finding the Fourth Proportional to 202,189.46, 279,022.38 and 111,546.50

Step by Step Solution

1. Step 1: Write the proportion equation
   202,189.46 : 279,022.38 = 111,546.50 : x
2. Step 2: Convert to fraction form
   202,189.46/279,022.38 = 111,546.50/x
3. Step 3: Cross multiply
   202,189.46x = 279,022.38 × 111,546.50
4. Step 4: Simplify right side
   202,189.46x = 31,123,969,910.67
5. Step 5: Solve for x
   x = 31,123,969,910.67/202,189.46
6. Step 6: Final answer
   x = 153,934.68