Finding the Fourth Proportional to 22,947.46, 31,667.61 and 13,394.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,947.46 : 31,667.61 = 13,394.02 : x
2. Step 2: Convert to fraction form
   22,947.46/31,667.61 = 13,394.02/x
3. Step 3: Cross multiply
   22,947.46x = 31,667.61 × 13,394.02
4. Step 4: Simplify right side
   22,947.46x = 424,156,601.69
5. Step 5: Solve for x
   x = 424,156,601.69/22,947.46
6. Step 6: Final answer
   x = 18,483.81