Finding the Fourth Proportional to 9,776.43, 13,491.54 and 5,300.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,776.43 : 13,491.54 = 5,300.25 : x
2. Step 2: Convert to fraction form
   9,776.43/13,491.54 = 5,300.25/x
3. Step 3: Cross multiply
   9,776.43x = 13,491.54 × 5,300.25
4. Step 4: Simplify right side
   9,776.43x = 71,508,534.89
5. Step 5: Solve for x
   x = 71,508,534.89/9,776.43
6. Step 6: Final answer
   x = 7,314.38