Finding the Fourth Proportional to 9,751.30, 13,456.74 and 5,275.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,751.30 : 13,456.74 = 5,275.05 : x
2. Step 2: Convert to fraction form
   9,751.30/13,456.74 = 5,275.05/x
3. Step 3: Cross multiply
   9,751.30x = 13,456.74 × 5,275.05
4. Step 4: Simplify right side
   9,751.30x = 70,984,945.66
5. Step 5: Solve for x
   x = 70,984,945.66/9,751.30
6. Step 6: Final answer
   x = 7,279.54