Finding the Fourth Proportional to 10,369.80, 14,309.90 and 5,653.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,369.80 : 14,309.90 = 5,653.98 : x
2. Step 2: Convert to fraction form
   10,369.80/14,309.90 = 5,653.98/x
3. Step 3: Cross multiply
   10,369.80x = 14,309.90 × 5,653.98
4. Step 4: Simplify right side
   10,369.80x = 80,907,888.40
5. Step 5: Solve for x
   x = 80,907,888.40/10,369.80
6. Step 6: Final answer
   x = 7,802.26