Finding the Fourth Proportional to 162,288.72, 243,035.60 and 134,035.92

Step by Step Solution

1. Step 1: Write the proportion equation
   162,288.72 : 243,035.60 = 134,035.92 : x
2. Step 2: Convert to fraction form
   162,288.72/243,035.60 = 134,035.92/x
3. Step 3: Cross multiply
   162,288.72x = 243,035.60 × 134,035.92
4. Step 4: Simplify right side
   162,288.72x = 32,575,500,238.75
5. Step 5: Solve for x
   x = 32,575,500,238.75/162,288.72
6. Step 6: Final answer
   x = 200,725.60