Finding the Fourth Proportional to 10,859.76, 14,987.16 and 7,542

Step by Step Solution

1. Step 1: Write the proportion equation
   10,859.76 : 14,987.16 = 7,542 : x
2. Step 2: Convert to fraction form
   10,859.76/14,987.16 = 7,542/x
3. Step 3: Cross multiply
   10,859.76x = 14,987.16 × 7,542
4. Step 4: Simplify right side
   10,859.76x = 113,033,160.72
5. Step 5: Solve for x
   x = 113,033,160.72/10,859.76
6. Step 6: Final answer
   x = 10,408.44