Finding the Fourth Proportional to 12,587.79, 17,369.76 and 7,552.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,587.79 : 17,369.76 = 7,552.23 : x
2. Step 2: Convert to fraction form
   12,587.79/17,369.76 = 7,552.23/x
3. Step 3: Cross multiply
   12,587.79x = 17,369.76 × 7,552.23
4. Step 4: Simplify right side
   12,587.79x = 131,180,422.56
5. Step 5: Solve for x
   x = 131,180,422.56/12,587.79
6. Step 6: Final answer
   x = 10,421.24