Finding the Fourth Proportional to 19,962.79, 27,547.71 and 11,459

Step by Step Solution

1. Step 1: Write the proportion equation
   19,962.79 : 27,547.71 = 11,459 : x
2. Step 2: Convert to fraction form
   19,962.79/27,547.71 = 11,459/x
3. Step 3: Cross multiply
   19,962.79x = 27,547.71 × 11,459
4. Step 4: Simplify right side
   19,962.79x = 315,669,208.89
5. Step 5: Solve for x
   x = 315,669,208.89/19,962.79
6. Step 6: Final answer
   x = 15,812.88