Finding the Fourth Proportional to 9,185.04, 13,710.98 and 8,499.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,185.04 : 13,710.98 = 8,499.76 : x
2. Step 2: Convert to fraction form
   9,185.04/13,710.98 = 8,499.76/x
3. Step 3: Cross multiply
   9,185.04x = 13,710.98 × 8,499.76
4. Step 4: Simplify right side
   9,185.04x = 116,540,039.36
5. Step 5: Solve for x
   x = 116,540,039.36/9,185.04
6. Step 6: Final answer
   x = 12,688.03