Finding the Fourth Proportional to 162,738.40, 224,568.24 and 91,117.76

Step by Step Solution

1. Step 1: Write the proportion equation
   162,738.40 : 224,568.24 = 91,117.76 : x
2. Step 2: Convert to fraction form
   162,738.40/224,568.24 = 91,117.76/x
3. Step 3: Cross multiply
   162,738.40x = 224,568.24 × 91,117.76
4. Step 4: Simplify right side
   162,738.40x = 20,462,154,995.94
5. Step 5: Solve for x
   x = 20,462,154,995.94/162,738.40
6. Step 6: Final answer
   x = 125,736.49