Finding the Fourth Proportional to 9,621.75, 13,278.22 and 5,314.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,621.75 : 13,278.22 = 5,314.82 : x
2. Step 2: Convert to fraction form
   9,621.75/13,278.22 = 5,314.82/x
3. Step 3: Cross multiply
   9,621.75x = 13,278.22 × 5,314.82
4. Step 4: Simplify right side
   9,621.75x = 70,571,349.22
5. Step 5: Solve for x
   x = 70,571,349.22/9,621.75
6. Step 6: Final answer
   x = 7,334.56