Finding the Fourth Proportional to 9,903.72, 14,856.04 and 5,517.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,903.72 : 14,856.04 = 5,517.88 : x
2. Step 2: Convert to fraction form
   9,903.72/14,856.04 = 5,517.88/x
3. Step 3: Cross multiply
   9,903.72x = 14,856.04 × 5,517.88
4. Step 4: Simplify right side
   9,903.72x = 81,973,846.00
5. Step 5: Solve for x
   x = 81,973,846.00/9,903.72
6. Step 6: Final answer
   x = 8,277.08