Finding the Fourth Proportional to 162,616.20, 243,996.72 and 103,436.52

Step by Step Solution

1. Step 1: Write the proportion equation
   162,616.20 : 243,996.72 = 103,436.52 : x
2. Step 2: Convert to fraction form
   162,616.20/243,996.72 = 103,436.52/x
3. Step 3: Cross multiply
   162,616.20x = 243,996.72 × 103,436.52
4. Step 4: Simplify right side
   162,616.20x = 25,238,171,608.21
5. Step 5: Solve for x
   x = 25,238,171,608.21/162,616.20
6. Step 6: Final answer
   x = 155,200.84