Finding the Fourth Proportional to 31,327.34, 47,014.37 and 12,607.55

Step by Step Solution

1. Step 1: Write the proportion equation
   31,327.34 : 47,014.37 = 12,607.55 : x
2. Step 2: Convert to fraction form
   31,327.34/47,014.37 = 12,607.55/x
3. Step 3: Cross multiply
   31,327.34x = 47,014.37 × 12,607.55
4. Step 4: Simplify right side
   31,327.34x = 592,736,020.49
5. Step 5: Solve for x
   x = 592,736,020.49/31,327.34
6. Step 6: Final answer
   x = 18,920.73