Finding the Fourth Proportional to 126,317.39, 189,484.28 and 42,074.15

Step by Step Solution

1. Step 1: Write the proportion equation
   126,317.39 : 189,484.28 = 42,074.15 : x
2. Step 2: Convert to fraction form
   126,317.39/189,484.28 = 42,074.15/x
3. Step 3: Cross multiply
   126,317.39x = 189,484.28 × 42,074.15
4. Step 4: Simplify right side
   126,317.39x = 7,972,388,861.57
5. Step 5: Solve for x
   x = 7,972,388,861.57/126,317.39
6. Step 6: Final answer
   x = 63,113.95