Finding the Fourth Proportional to 288,983.42, 398,837.31 and 161,667.62

Step by Step Solution

1. Step 1: Write the proportion equation
   288,983.42 : 398,837.31 = 161,667.62 : x
2. Step 2: Convert to fraction form
   288,983.42/398,837.31 = 161,667.62/x
3. Step 3: Cross multiply
   288,983.42x = 398,837.31 × 161,667.62
4. Step 4: Simplify right side
   288,983.42x = 64,479,078,674.90
5. Step 5: Solve for x
   x = 64,479,078,674.90/288,983.42
6. Step 6: Final answer
   x = 223,123.80