Finding the Fourth Proportional to 10,456.56, 14,421.56 and 9,194.99

Step by Step Solution

1. Step 1: Write the proportion equation
   10,456.56 : 14,421.56 = 9,194.99 : x
2. Step 2: Convert to fraction form
   10,456.56/14,421.56 = 9,194.99/x
3. Step 3: Cross multiply
   10,456.56x = 14,421.56 × 9,194.99
4. Step 4: Simplify right side
   10,456.56x = 132,605,981.90
5. Step 5: Solve for x
   x = 132,605,981.90/10,456.56
6. Step 6: Final answer
   x = 12,681.61