Finding the Fourth Proportional to 9,561.51, 13,196.84 and 5,528.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,561.51 : 13,196.84 = 5,528.52 : x
2. Step 2: Convert to fraction form
   9,561.51/13,196.84 = 5,528.52/x
3. Step 3: Cross multiply
   9,561.51x = 13,196.84 × 5,528.52
4. Step 4: Simplify right side
   9,561.51x = 72,958,966.23
5. Step 5: Solve for x
   x = 72,958,966.23/9,561.51
6. Step 6: Final answer
   x = 7,630.49