Finding the Fourth Proportional to 9,903.88, 13,665.22 and 5,871.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,903.88 : 13,665.22 = 5,871.98 : x
2. Step 2: Convert to fraction form
   9,903.88/13,665.22 = 5,871.98/x
3. Step 3: Cross multiply
   9,903.88x = 13,665.22 × 5,871.98
4. Step 4: Simplify right side
   9,903.88x = 80,241,800.85
5. Step 5: Solve for x
   x = 80,241,800.85/9,903.88
6. Step 6: Final answer
   x = 8,102.06