Finding the Fourth Proportional to 47,669.31, 71,504.88 and 12,609.88

Step by Step Solution

1. Step 1: Write the proportion equation
   47,669.31 : 71,504.88 = 12,609.88 : x
2. Step 2: Convert to fraction form
   47,669.31/71,504.88 = 12,609.88/x
3. Step 3: Cross multiply
   47,669.31x = 71,504.88 × 12,609.88
4. Step 4: Simplify right side
   47,669.31x = 901,667,730.17
5. Step 5: Solve for x
   x = 901,667,730.17/47,669.31
6. Step 6: Final answer
   x = 18,915.06