Finding the Fourth Proportional to 162,399.32, 243,258.78 and 103,204.52

Step by Step Solution

1. Step 1: Write the proportion equation
   162,399.32 : 243,258.78 = 103,204.52 : x
2. Step 2: Convert to fraction form
   162,399.32/243,258.78 = 103,204.52/x
3. Step 3: Cross multiply
   162,399.32x = 243,258.78 × 103,204.52
4. Step 4: Simplify right side
   162,399.32x = 25,105,405,625.69
5. Step 5: Solve for x
   x = 25,105,405,625.69/162,399.32
6. Step 6: Final answer
   x = 154,590.58