Finding the Fourth Proportional to 162,528.56, 243,754.56 and 91,481.42

Step by Step Solution

1. Step 1: Write the proportion equation
   162,528.56 : 243,754.56 = 91,481.42 : x
2. Step 2: Convert to fraction form
   162,528.56/243,754.56 = 91,481.42/x
3. Step 3: Cross multiply
   162,528.56x = 243,754.56 × 91,481.42
4. Step 4: Simplify right side
   162,528.56x = 22,299,013,280.28
5. Step 5: Solve for x
   x = 22,299,013,280.28/162,528.56
6. Step 6: Final answer
   x = 137,200.58