Finding the Fourth Proportional to 126,253.03, 189,401.42 and 56,137.81

Step by Step Solution

1. Step 1: Write the proportion equation
   126,253.03 : 189,401.42 = 56,137.81 : x
2. Step 2: Convert to fraction form
   126,253.03/189,401.42 = 56,137.81/x
3. Step 3: Cross multiply
   126,253.03x = 189,401.42 × 56,137.81
4. Step 4: Simplify right side
   126,253.03x = 10,632,580,929.69
5. Step 5: Solve for x
   x = 10,632,580,929.69/126,253.03
6. Step 6: Final answer
   x = 84,216.44