Finding the Fourth Proportional to 126,111.24, 189,105.42 and 45,030.60

Step by Step Solution

1. Step 1: Write the proportion equation
   126,111.24 : 189,105.42 = 45,030.60 : x
2. Step 2: Convert to fraction form
   126,111.24/189,105.42 = 45,030.60/x
3. Step 3: Cross multiply
   126,111.24x = 189,105.42 × 45,030.60
4. Step 4: Simplify right side
   126,111.24x = 8,515,530,525.85
5. Step 5: Solve for x
   x = 8,515,530,525.85/126,111.24
6. Step 6: Final answer
   x = 67,523.96