Finding the Fourth Proportional to 10,357.72, 15,537.36 and 7,103.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,357.72 : 15,537.36 = 7,103.08 : x
2. Step 2: Convert to fraction form
   10,357.72/15,537.36 = 7,103.08/x
3. Step 3: Cross multiply
   10,357.72x = 15,537.36 × 7,103.08
4. Step 4: Simplify right side
   10,357.72x = 110,363,111.07
5. Step 5: Solve for x
   x = 110,363,111.07/10,357.72
6. Step 6: Final answer
   x = 10,655.15