Finding the Fourth Proportional to 9,900.96, 13,662.76 and 7,259.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,900.96 : 13,662.76 = 7,259.52 : x
2. Step 2: Convert to fraction form
   9,900.96/13,662.76 = 7,259.52/x
3. Step 3: Cross multiply
   9,900.96x = 13,662.76 × 7,259.52
4. Step 4: Simplify right side
   9,900.96x = 99,185,079.48
5. Step 5: Solve for x
   x = 99,185,079.48/9,900.96
6. Step 6: Final answer
   x = 10,017.72