Finding the Fourth Proportional to 126,018.84, 189,063.29 and 54,947.68

Step by Step Solution

1. Step 1: Write the proportion equation
   126,018.84 : 189,063.29 = 54,947.68 : x
2. Step 2: Convert to fraction form
   126,018.84/189,063.29 = 54,947.68/x
3. Step 3: Cross multiply
   126,018.84x = 189,063.29 × 54,947.68
4. Step 4: Simplify right side
   126,018.84x = 10,388,589,158.67
5. Step 5: Solve for x
   x = 10,388,589,158.67/126,018.84
6. Step 6: Final answer
   x = 82,436.79