Finding the Fourth Proportional to 162,740.72, 224,556 and 91,123.76

Step by Step Solution

1. Step 1: Write the proportion equation
   162,740.72 : 224,556 = 91,123.76 : x
2. Step 2: Convert to fraction form
   162,740.72/224,556 = 91,123.76/x
3. Step 3: Cross multiply
   162,740.72x = 224,556 × 91,123.76
4. Step 4: Simplify right side
   162,740.72x = 20,462,387,050.56
5. Step 5: Solve for x
   x = 20,462,387,050.56/162,740.72
6. Step 6: Final answer
   x = 125,736.12