Finding the Fourth Proportional to 19,667.84, 29,520.24 and 13,098.56

Step by Step Solution

1. Step 1: Write the proportion equation
   19,667.84 : 29,520.24 = 13,098.56 : x
2. Step 2: Convert to fraction form
   19,667.84/29,520.24 = 13,098.56/x
3. Step 3: Cross multiply
   19,667.84x = 29,520.24 × 13,098.56
4. Step 4: Simplify right side
   19,667.84x = 386,672,634.85
5. Step 5: Solve for x
   x = 386,672,634.85/19,667.84
6. Step 6: Final answer
   x = 19,660.15