Finding the Fourth Proportional to 399,667.82, 599,797 and 189,305.76

Step by Step Solution

1. Step 1: Write the proportion equation
   399,667.82 : 599,797 = 189,305.76 : x
2. Step 2: Convert to fraction form
   399,667.82/599,797 = 189,305.76/x
3. Step 3: Cross multiply
   399,667.82x = 599,797 × 189,305.76
4. Step 4: Simplify right side
   399,667.82x = 113,545,026,930.72
5. Step 5: Solve for x
   x = 113,545,026,930.72/399,667.82
6. Step 6: Final answer
   x = 284,098.50