Finding the Fourth Proportional to 12,725.37, 17,561.04 and 7,136.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,725.37 : 17,561.04 = 7,136.37 : x
2. Step 2: Convert to fraction form
   12,725.37/17,561.04 = 7,136.37/x
3. Step 3: Cross multiply
   12,725.37x = 17,561.04 × 7,136.37
4. Step 4: Simplify right side
   12,725.37x = 125,322,079.02
5. Step 5: Solve for x
   x = 125,322,079.02/12,725.37
6. Step 6: Final answer
   x = 9,848.21