Finding the Fourth Proportional to 126,381.48, 174,428.82 and 72,662.28

Step by Step Solution

1. Step 1: Write the proportion equation
   126,381.48 : 174,428.82 = 72,662.28 : x
2. Step 2: Convert to fraction form
   126,381.48/174,428.82 = 72,662.28/x
3. Step 3: Cross multiply
   126,381.48x = 174,428.82 × 72,662.28
4. Step 4: Simplify right side
   126,381.48x = 12,674,395,758.91
5. Step 5: Solve for x
   x = 12,674,395,758.91/126,381.48
6. Step 6: Final answer
   x = 100,286.81