Finding the Fourth Proportional to 9,767.58, 13,479.25 and 5,291.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,767.58 : 13,479.25 = 5,291.34 : x
2. Step 2: Convert to fraction form
   9,767.58/13,479.25 = 5,291.34/x
3. Step 3: Cross multiply
   9,767.58x = 13,479.25 × 5,291.34
4. Step 4: Simplify right side
   9,767.58x = 71,323,315.16
5. Step 5: Solve for x
   x = 71,323,315.16/9,767.58
6. Step 6: Final answer
   x = 7,302.05