Finding the Fourth Proportional to 126,423.82, 189,572.24 and 42,154.15

Step by Step Solution

1. Step 1: Write the proportion equation
   126,423.82 : 189,572.24 = 42,154.15 : x
2. Step 2: Convert to fraction form
   126,423.82/189,572.24 = 42,154.15/x
3. Step 3: Cross multiply
   126,423.82x = 189,572.24 × 42,154.15
4. Step 4: Simplify right side
   126,423.82x = 7,991,256,983.15
5. Step 5: Solve for x
   x = 7,991,256,983.15/126,423.82
6. Step 6: Final answer
   x = 63,210.06