Finding the Fourth Proportional to 12,571.48, 17,348.10 and 7,538.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,571.48 : 17,348.10 = 7,538.52 : x
2. Step 2: Convert to fraction form
   12,571.48/17,348.10 = 7,538.52/x
3. Step 3: Cross multiply
   12,571.48x = 17,348.10 × 7,538.52
4. Step 4: Simplify right side
   12,571.48x = 130,778,998.81
5. Step 5: Solve for x
   x = 130,778,998.81/12,571.48
6. Step 6: Final answer
   x = 10,402.83