Finding the Fourth Proportional to 9,910.28, 13,649.91 and 7,384.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,910.28 : 13,649.91 = 7,384.30 : x
2. Step 2: Convert to fraction form
   9,910.28/13,649.91 = 7,384.30/x
3. Step 3: Cross multiply
   9,910.28x = 13,649.91 × 7,384.30
4. Step 4: Simplify right side
   9,910.28x = 100,795,030.41
5. Step 5: Solve for x
   x = 100,795,030.41/9,910.28
6. Step 6: Final answer
   x = 10,170.76