Finding the Fourth Proportional to 9,993.51, 13,789.49 and 5,743.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,993.51 : 13,789.49 = 5,743.76 : x
2. Step 2: Convert to fraction form
   9,993.51/13,789.49 = 5,743.76/x
3. Step 3: Cross multiply
   9,993.51x = 13,789.49 × 5,743.76
4. Step 4: Simplify right side
   9,993.51x = 79,203,423.42
5. Step 5: Solve for x
   x = 79,203,423.42/9,993.51
6. Step 6: Final answer
   x = 7,925.49