Finding the Fourth Proportional to 9,910.74, 14,859.75 and 5,522.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,910.74 : 14,859.75 = 5,522.16 : x
2. Step 2: Convert to fraction form
   9,910.74/14,859.75 = 5,522.16/x
3. Step 3: Cross multiply
   9,910.74x = 14,859.75 × 5,522.16
4. Step 4: Simplify right side
   9,910.74x = 82,057,917.06
5. Step 5: Solve for x
   x = 82,057,917.06/9,910.74
6. Step 6: Final answer
   x = 8,279.70