Finding the Fourth Proportional to 9,561.51, 13,192.67 and 5,528.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,561.51 : 13,192.67 = 5,528.32 : x
2. Step 2: Convert to fraction form
   9,561.51/13,192.67 = 5,528.32/x
3. Step 3: Cross multiply
   9,561.51x = 13,192.67 × 5,528.32
4. Step 4: Simplify right side
   9,561.51x = 72,933,282.25
5. Step 5: Solve for x
   x = 72,933,282.25/9,561.51
6. Step 6: Final answer
   x = 7,627.80