Finding the Fourth Proportional to 162,738.72, 224,600.04 and 99,072.72

Step by Step Solution

1. Step 1: Write the proportion equation
   162,738.72 : 224,600.04 = 99,072.72 : x
2. Step 2: Convert to fraction form
   162,738.72/224,600.04 = 99,072.72/x
3. Step 3: Cross multiply
   162,738.72x = 224,600.04 × 99,072.72
4. Step 4: Simplify right side
   162,738.72x = 22,251,736,874.91
5. Step 5: Solve for x
   x = 22,251,736,874.91/162,738.72
6. Step 6: Final answer
   x = 136,732.90