Finding the Fourth Proportional to 31,734.72, 47,594.25 and 13,020.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,734.72 : 47,594.25 = 13,020.08 : x
2. Step 2: Convert to fraction form
   31,734.72/47,594.25 = 13,020.08/x
3. Step 3: Cross multiply
   31,734.72x = 47,594.25 × 13,020.08
4. Step 4: Simplify right side
   31,734.72x = 619,680,704.57
5. Step 5: Solve for x
   x = 619,680,704.57/31,734.72
6. Step 6: Final answer
   x = 19,526.90