Finding the Fourth Proportional to 9,885.30, 14,805.96 and 7,103.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,885.30 : 14,805.96 = 7,103.60 : x
2. Step 2: Convert to fraction form
   9,885.30/14,805.96 = 7,103.60/x
3. Step 3: Cross multiply
   9,885.30x = 14,805.96 × 7,103.60
4. Step 4: Simplify right side
   9,885.30x = 105,175,617.46
5. Step 5: Solve for x
   x = 105,175,617.46/9,885.30
6. Step 6: Final answer
   x = 10,639.60