Finding the Fourth Proportional to 31,723.63, 47,585.39 and 13,003.67

Step by Step Solution

1. Step 1: Write the proportion equation
   31,723.63 : 47,585.39 = 13,003.67 : x
2. Step 2: Convert to fraction form
   31,723.63/47,585.39 = 13,003.67/x
3. Step 3: Cross multiply
   31,723.63x = 47,585.39 × 13,003.67
4. Step 4: Simplify right side
   31,723.63x = 618,784,762.33
5. Step 5: Solve for x
   x = 618,784,762.33/31,723.63
6. Step 6: Final answer
   x = 19,505.49