Finding the Fourth Proportional to 399,399.94, 598,933.35 and 162,581.86

Step by Step Solution

1. Step 1: Write the proportion equation
   399,399.94 : 598,933.35 = 162,581.86 : x
2. Step 2: Convert to fraction form
   399,399.94/598,933.35 = 162,581.86/x
3. Step 3: Cross multiply
   399,399.94x = 598,933.35 × 162,581.86
4. Step 4: Simplify right side
   399,399.94x = 97,375,698,059.03
5. Step 5: Solve for x
   x = 97,375,698,059.03/399,399.94
6. Step 6: Final answer
   x = 243,804.99