Finding the Fourth Proportional to 15,238.05, 21,037.59 and 9,577.59

Step by Step Solution

1. Step 1: Write the proportion equation
   15,238.05 : 21,037.59 = 9,577.59 : x
2. Step 2: Convert to fraction form
   15,238.05/21,037.59 = 9,577.59/x
3. Step 3: Cross multiply
   15,238.05x = 21,037.59 × 9,577.59
4. Step 4: Simplify right side
   15,238.05x = 201,489,411.61
5. Step 5: Solve for x
   x = 201,489,411.61/15,238.05
6. Step 6: Final answer
   x = 13,222.78