Finding the Fourth Proportional to 10,554.21, 14,563.17 and 6,078.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,554.21 : 14,563.17 = 6,078.15 : x
2. Step 2: Convert to fraction form
   10,554.21/14,563.17 = 6,078.15/x
3. Step 3: Cross multiply
   10,554.21x = 14,563.17 × 6,078.15
4. Step 4: Simplify right side
   10,554.21x = 88,517,131.74
5. Step 5: Solve for x
   x = 88,517,131.74/10,554.21
6. Step 6: Final answer
   x = 8,386.90