Finding the Fourth Proportional to 9,900.86, 14,871.80 and 9,568.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,900.86 : 14,871.80 = 9,568.70 : x
2. Step 2: Convert to fraction form
   9,900.86/14,871.80 = 9,568.70/x
3. Step 3: Cross multiply
   9,900.86x = 14,871.80 × 9,568.70
4. Step 4: Simplify right side
   9,900.86x = 142,303,792.66
5. Step 5: Solve for x
   x = 142,303,792.66/9,900.86
6. Step 6: Final answer
   x = 14,372.87