Finding the Fourth Proportional to 10,978.24, 16,453.26 and 5,712.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.24 : 16,453.26 = 5,712.53 : x
2. Step 2: Convert to fraction form
   10,978.24/16,453.26 = 5,712.53/x
3. Step 3: Cross multiply
   10,978.24x = 16,453.26 × 5,712.53
4. Step 4: Simplify right side
   10,978.24x = 93,989,741.35
5. Step 5: Solve for x
   x = 93,989,741.35/10,978.24
6. Step 6: Final answer
   x = 8,561.46