Finding the Fourth Proportional to 19,322.80, 26,667.15 and 10,824.78

Step by Step Solution

1. Step 1: Write the proportion equation
   19,322.80 : 26,667.15 = 10,824.78 : x
2. Step 2: Convert to fraction form
   19,322.80/26,667.15 = 10,824.78/x
3. Step 3: Cross multiply
   19,322.80x = 26,667.15 × 10,824.78
4. Step 4: Simplify right side
   19,322.80x = 288,666,031.98
5. Step 5: Solve for x
   x = 288,666,031.98/19,322.80
6. Step 6: Final answer
   x = 14,939.14