Finding the Fourth Proportional to 9,748.80, 13,453.33 and 5,272.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,748.80 : 13,453.33 = 5,272.51 : x
2. Step 2: Convert to fraction form
   9,748.80/13,453.33 = 5,272.51/x
3. Step 3: Cross multiply
   9,748.80x = 13,453.33 × 5,272.51
4. Step 4: Simplify right side
   9,748.80x = 70,932,723.33
5. Step 5: Solve for x
   x = 70,932,723.33/9,748.80
6. Step 6: Final answer
   x = 7,276.05