Finding the Fourth Proportional to 283,538.72, 391,282.27 and 154,476.83

Step by Step Solution

1. Step 1: Write the proportion equation
   283,538.72 : 391,282.27 = 154,476.83 : x
2. Step 2: Convert to fraction form
   283,538.72/391,282.27 = 154,476.83/x
3. Step 3: Cross multiply
   283,538.72x = 391,282.27 × 154,476.83
4. Step 4: Simplify right side
   283,538.72x = 60,444,045,296.82
5. Step 5: Solve for x
   x = 60,444,045,296.82/283,538.72
6. Step 6: Final answer
   x = 213,177.39