Finding the Fourth Proportional to 47,710.89, 71,558.23 and 12,654.09

Step by Step Solution

1. Step 1: Write the proportion equation
   47,710.89 : 71,558.23 = 12,654.09 : x
2. Step 2: Convert to fraction form
   47,710.89/71,558.23 = 12,654.09/x
3. Step 3: Cross multiply
   47,710.89x = 71,558.23 × 12,654.09
4. Step 4: Simplify right side
   47,710.89x = 905,504,282.66
5. Step 5: Solve for x
   x = 905,504,282.66/47,710.89
6. Step 6: Final answer
   x = 18,978.99