Finding the Fourth Proportional to 15,632.42, 21,573.42 and 9,659.48

Step by Step Solution

1. Step 1: Write the proportion equation
   15,632.42 : 21,573.42 = 9,659.48 : x
2. Step 2: Convert to fraction form
   15,632.42/21,573.42 = 9,659.48/x
3. Step 3: Cross multiply
   15,632.42x = 21,573.42 × 9,659.48
4. Step 4: Simplify right side
   15,632.42x = 208,388,019.02
5. Step 5: Solve for x
   x = 208,388,019.02/15,632.42
6. Step 6: Final answer
   x = 13,330.50