Finding the Fourth Proportional to 13,814.84, 19,061.78 and 9,559.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,814.84 : 19,061.78 = 9,559.28 : x
2. Step 2: Convert to fraction form
   13,814.84/19,061.78 = 9,559.28/x
3. Step 3: Cross multiply
   13,814.84x = 19,061.78 × 9,559.28
4. Step 4: Simplify right side
   13,814.84x = 182,216,892.32
5. Step 5: Solve for x
   x = 182,216,892.32/13,814.84
6. Step 6: Final answer
   x = 13,189.94