Finding the Fourth Proportional to 47,145.33, 70,710.30 and 13,861.62

Step by Step Solution

1. Step 1: Write the proportion equation
   47,145.33 : 70,710.30 = 13,861.62 : x
2. Step 2: Convert to fraction form
   47,145.33/70,710.30 = 13,861.62/x
3. Step 3: Cross multiply
   47,145.33x = 70,710.30 × 13,861.62
4. Step 4: Simplify right side
   47,145.33x = 980,159,308.69
5. Step 5: Solve for x
   x = 980,159,308.69/47,145.33
6. Step 6: Final answer
   x = 20,790.17