Finding the Fourth Proportional to 162,738.72, 224,553.24 and 91,121.76

Step by Step Solution

1. Step 1: Write the proportion equation
   162,738.72 : 224,553.24 = 91,121.76 : x
2. Step 2: Convert to fraction form
   162,738.72/224,553.24 = 91,121.76/x
3. Step 3: Cross multiply
   162,738.72x = 224,553.24 × 91,121.76
4. Step 4: Simplify right side
   162,738.72x = 20,461,686,442.50
5. Step 5: Solve for x
   x = 20,461,686,442.50/162,738.72
6. Step 6: Final answer
   x = 125,733.36