Finding the Fourth Proportional to 13,743.52, 18,965.82 and 7,455.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,743.52 : 18,965.82 = 7,455.76 : x
2. Step 2: Convert to fraction form
   13,743.52/18,965.82 = 7,455.76/x
3. Step 3: Cross multiply
   13,743.52x = 18,965.82 × 7,455.76
4. Step 4: Simplify right side
   13,743.52x = 141,404,602.12
5. Step 5: Solve for x
   x = 141,404,602.12/13,743.52
6. Step 6: Final answer
   x = 10,288.82