Finding the Fourth Proportional to 13,743.27, 18,965.72 and 7,774.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,743.27 : 18,965.72 = 7,774.82 : x
2. Step 2: Convert to fraction form
   13,743.27/18,965.72 = 7,774.82/x
3. Step 3: Cross multiply
   13,743.27x = 18,965.72 × 7,774.82
4. Step 4: Simplify right side
   13,743.27x = 147,454,925.47
5. Step 5: Solve for x
   x = 147,454,925.47/13,743.27
6. Step 6: Final answer
   x = 10,729.25