Finding the Fourth Proportional to 9,900.43, 14,851.10 and 5,514.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,900.43 : 14,851.10 = 5,514.58 : x
2. Step 2: Convert to fraction form
   9,900.43/14,851.10 = 5,514.58/x
3. Step 3: Cross multiply
   9,900.43x = 14,851.10 × 5,514.58
4. Step 4: Simplify right side
   9,900.43x = 81,897,551.47
5. Step 5: Solve for x
   x = 81,897,551.47/9,900.43
6. Step 6: Final answer
   x = 8,272.12