Finding the Fourth Proportional to 12,593.16, 17,377.20 and 7,557.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,593.16 : 17,377.20 = 7,557.18 : x
2. Step 2: Convert to fraction form
   12,593.16/17,377.20 = 7,557.18/x
3. Step 3: Cross multiply
   12,593.16x = 17,377.20 × 7,557.18
4. Step 4: Simplify right side
   12,593.16x = 131,322,628.30
5. Step 5: Solve for x
   x = 131,322,628.30/12,593.16
6. Step 6: Final answer
   x = 10,428.09