Finding the Fourth Proportional to 12,443.92, 17,148.99 and 8,900.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.92 : 17,148.99 = 8,900.98 : x
2. Step 2: Convert to fraction form
   12,443.92/17,148.99 = 8,900.98/x
3. Step 3: Cross multiply
   12,443.92x = 17,148.99 × 8,900.98
4. Step 4: Simplify right side
   12,443.92x = 152,642,817.01
5. Step 5: Solve for x
   x = 152,642,817.01/12,443.92
6. Step 6: Final answer
   x = 12,266.46