Finding the Fourth Proportional to 126,321.55, 189,441.27 and 42,059.07

Step by Step Solution

1. Step 1: Write the proportion equation
   126,321.55 : 189,441.27 = 42,059.07 : x
2. Step 2: Convert to fraction form
   126,321.55/189,441.27 = 42,059.07/x
3. Step 3: Cross multiply
   126,321.55x = 189,441.27 × 42,059.07
4. Step 4: Simplify right side
   126,321.55x = 7,967,723,635.82
5. Step 5: Solve for x
   x = 7,967,723,635.82/126,321.55
6. Step 6: Final answer
   x = 63,074.94