Finding the Fourth Proportional to 19,817.46, 29,667.87 and 13,227.30

Step by Step Solution

1. Step 1: Write the proportion equation
   19,817.46 : 29,667.87 = 13,227.30 : x
2. Step 2: Convert to fraction form
   19,817.46/29,667.87 = 13,227.30/x
3. Step 3: Cross multiply
   19,817.46x = 29,667.87 × 13,227.30
4. Step 4: Simplify right side
   19,817.46x = 392,425,816.85
5. Step 5: Solve for x
   x = 392,425,816.85/19,817.46
6. Step 6: Final answer
   x = 19,802.02