Finding the Fourth Proportional to 12,843.66, 17,725.53 and 7,538.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,843.66 : 17,725.53 = 7,538.37 : x
2. Step 2: Convert to fraction form
   12,843.66/17,725.53 = 7,538.37/x
3. Step 3: Cross multiply
   12,843.66x = 17,725.53 × 7,538.37
4. Step 4: Simplify right side
   12,843.66x = 133,621,603.59
5. Step 5: Solve for x
   x = 133,621,603.59/12,843.66
6. Step 6: Final answer
   x = 10,403.70