Finding the Fourth Proportional to 9,890.76, 14,821.52 and 5,502.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,890.76 : 14,821.52 = 5,502.18 : x
2. Step 2: Convert to fraction form
   9,890.76/14,821.52 = 5,502.18/x
3. Step 3: Cross multiply
   9,890.76x = 14,821.52 × 5,502.18
4. Step 4: Simplify right side
   9,890.76x = 81,550,670.91
5. Step 5: Solve for x
   x = 81,550,670.91/9,890.76
6. Step 6: Final answer
   x = 8,245.14