Finding the Fourth Proportional to 126,581.50, 189,748.05 and 70,448.50

Step by Step Solution

1. Step 1: Write the proportion equation
   126,581.50 : 189,748.05 = 70,448.50 : x
2. Step 2: Convert to fraction form
   126,581.50/189,748.05 = 70,448.50/x
3. Step 3: Cross multiply
   126,581.50x = 189,748.05 × 70,448.50
4. Step 4: Simplify right side
   126,581.50x = 13,367,465,500.43
5. Step 5: Solve for x
   x = 13,367,465,500.43/126,581.50
6. Step 6: Final answer
   x = 105,603.63