Finding the Fourth Proportional to 10,454.63, 14,427.18 and 5,978.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,454.63 : 14,427.18 = 5,978.16 : x
2. Step 2: Convert to fraction form
   10,454.63/14,427.18 = 5,978.16/x
3. Step 3: Cross multiply
   10,454.63x = 14,427.18 × 5,978.16
4. Step 4: Simplify right side
   10,454.63x = 86,247,990.39
5. Step 5: Solve for x
   x = 86,247,990.39/10,454.63
6. Step 6: Final answer
   x = 8,249.75