Finding the Fourth Proportional to 9,990.06, 13,786.43 and 5,514.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,990.06 : 13,786.43 = 5,514.00 : x
2. Step 2: Convert to fraction form
   9,990.06/13,786.43 = 5,514.00/x
3. Step 3: Cross multiply
   9,990.06x = 13,786.43 × 5,514.00
4. Step 4: Simplify right side
   9,990.06x = 76,018,295.75
5. Step 5: Solve for x
   x = 76,018,295.75/9,990.06
6. Step 6: Final answer
   x = 7,609.40