Finding the Fourth Proportional to 10,389.53, 14,337.52 and 5,673.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,389.53 : 14,337.52 = 5,673.80 : x
2. Step 2: Convert to fraction form
   10,389.53/14,337.52 = 5,673.80/x
3. Step 3: Cross multiply
   10,389.53x = 14,337.52 × 5,673.80
4. Step 4: Simplify right side
   10,389.53x = 81,348,220.98
5. Step 5: Solve for x
   x = 81,348,220.98/10,389.53
6. Step 6: Final answer
   x = 7,829.83