Finding the Fourth Proportional to 19,196.69, 26,491.03 and 10,698.78

Step by Step Solution

1. Step 1: Write the proportion equation
   19,196.69 : 26,491.03 = 10,698.78 : x
2. Step 2: Convert to fraction form
   19,196.69/26,491.03 = 10,698.78/x
3. Step 3: Cross multiply
   19,196.69x = 26,491.03 × 10,698.78
4. Step 4: Simplify right side
   19,196.69x = 283,421,685.71
5. Step 5: Solve for x
   x = 283,421,685.71/19,196.69
6. Step 6: Final answer
   x = 14,764.09