Finding the Fourth Proportional to 19,609.62, 27,061.42 and 10,657.12

Step by Step Solution

1. Step 1: Write the proportion equation
   19,609.62 : 27,061.42 = 10,657.12 : x
2. Step 2: Convert to fraction form
   19,609.62/27,061.42 = 10,657.12/x
3. Step 3: Cross multiply
   19,609.62x = 27,061.42 × 10,657.12
4. Step 4: Simplify right side
   19,609.62x = 288,396,800.31
5. Step 5: Solve for x
   x = 288,396,800.31/19,609.62
6. Step 6: Final answer
   x = 14,706.90