Finding the Fourth Proportional to 12,393.72, 17,102.52 and 7,357.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,393.72 : 17,102.52 = 7,357.68 : x
2. Step 2: Convert to fraction form
   12,393.72/17,102.52 = 7,357.68/x
3. Step 3: Cross multiply
   12,393.72x = 17,102.52 × 7,357.68
4. Step 4: Simplify right side
   12,393.72x = 125,834,869.35
5. Step 5: Solve for x
   x = 125,834,869.35/12,393.72
6. Step 6: Final answer
   x = 10,153.12