Finding the Fourth Proportional to 9,724.58, 13,419.60 and 5,475.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,724.58 : 13,419.60 = 5,475.88 : x
2. Step 2: Convert to fraction form
   9,724.58/13,419.60 = 5,475.88/x
3. Step 3: Cross multiply
   9,724.58x = 13,419.60 × 5,475.88
4. Step 4: Simplify right side
   9,724.58x = 73,484,119.25
5. Step 5: Solve for x
   x = 73,484,119.25/9,724.58
6. Step 6: Final answer
   x = 7,556.53