Finding the Fourth Proportional to 126,498.28, 189,922.38 and 64,212.52

Step by Step Solution

1. Step 1: Write the proportion equation
   126,498.28 : 189,922.38 = 64,212.52 : x
2. Step 2: Convert to fraction form
   126,498.28/189,922.38 = 64,212.52/x
3. Step 3: Cross multiply
   126,498.28x = 189,922.38 × 64,212.52
4. Step 4: Simplify right side
   126,498.28x = 12,195,394,624.20
5. Step 5: Solve for x
   x = 12,195,394,624.20/126,498.28
6. Step 6: Final answer
   x = 96,407.59