Finding the Fourth Proportional to 11,816.84, 17,708.55 and 6,554.17

Step by Step Solution

1. Step 1: Write the proportion equation
   11,816.84 : 17,708.55 = 6,554.17 : x
2. Step 2: Convert to fraction form
   11,816.84/17,708.55 = 6,554.17/x
3. Step 3: Cross multiply
   11,816.84x = 17,708.55 × 6,554.17
4. Step 4: Simplify right side
   11,816.84x = 116,064,802.88
5. Step 5: Solve for x
   x = 116,064,802.88/11,816.84
6. Step 6: Final answer
   x = 9,821.99