Finding the Fourth Proportional to 12,129.48, 16,738.32 and 7,352.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,129.48 : 16,738.32 = 7,352.25 : x
2. Step 2: Convert to fraction form
   12,129.48/16,738.32 = 7,352.25/x
3. Step 3: Cross multiply
   12,129.48x = 16,738.32 × 7,352.25
4. Step 4: Simplify right side
   12,129.48x = 123,064,313.22
5. Step 5: Solve for x
   x = 123,064,313.22/12,129.48
6. Step 6: Final answer
   x = 10,145.89