Finding the Fourth Proportional to 9,580.25, 13,221.35 and 5,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,580.25 : 13,221.35 = 5,388.50 : x
2. Step 2: Convert to fraction form
   9,580.25/13,221.35 = 5,388.50/x
3. Step 3: Cross multiply
   9,580.25x = 13,221.35 × 5,388.50
4. Step 4: Simplify right side
   9,580.25x = 71,243,244.48
5. Step 5: Solve for x
   x = 71,243,244.48/9,580.25
6. Step 6: Final answer
   x = 7,436.47