Finding the Fourth Proportional to 47,150.55, 70,723.69 and 13,871.70

Step by Step Solution

1. Step 1: Write the proportion equation
   47,150.55 : 70,723.69 = 13,871.70 : x
2. Step 2: Convert to fraction form
   47,150.55/70,723.69 = 13,871.70/x
3. Step 3: Cross multiply
   47,150.55x = 70,723.69 × 13,871.70
4. Step 4: Simplify right side
   47,150.55x = 981,057,810.57
5. Step 5: Solve for x
   x = 981,057,810.57/47,150.55
6. Step 6: Final answer
   x = 20,806.92