Finding the Fourth Proportional to 9,900.68, 14,851.47 and 5,514.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,900.68 : 14,851.47 = 5,514.83 : x
2. Step 2: Convert to fraction form
   9,900.68/14,851.47 = 5,514.83/x
3. Step 3: Cross multiply
   9,900.68x = 14,851.47 × 5,514.83
4. Step 4: Simplify right side
   9,900.68x = 81,903,332.30
5. Step 5: Solve for x
   x = 81,903,332.30/9,900.68
6. Step 6: Final answer
   x = 8,272.50