Finding the Fourth Proportional to 227,196.13, 340,857.41 and 99,123.61

Step by Step Solution

1. Step 1: Write the proportion equation
   227,196.13 : 340,857.41 = 99,123.61 : x
2. Step 2: Convert to fraction form
   227,196.13/340,857.41 = 99,123.61/x
3. Step 3: Cross multiply
   227,196.13x = 340,857.41 × 99,123.61
4. Step 4: Simplify right side
   227,196.13x = 33,787,016,974.45
5. Step 5: Solve for x
   x = 33,787,016,974.45/227,196.13
6. Step 6: Final answer
   x = 148,713.00