Finding the Fourth Proportional to 9,507.70, 13,119.96 and 5,528.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,507.70 : 13,119.96 = 5,528.53 : x
2. Step 2: Convert to fraction form
   9,507.70/13,119.96 = 5,528.53/x
3. Step 3: Cross multiply
   9,507.70x = 13,119.96 × 5,528.53
4. Step 4: Simplify right side
   9,507.70x = 72,534,092.46
5. Step 5: Solve for x
   x = 72,534,092.46/9,507.70
6. Step 6: Final answer
   x = 7,628.98