Finding the Fourth Proportional to 10,978.12, 16,465.56 and 4,051

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.12 : 16,465.56 = 4,051 : x
2. Step 2: Convert to fraction form
   10,978.12/16,465.56 = 4,051/x
3. Step 3: Cross multiply
   10,978.12x = 16,465.56 × 4,051
4. Step 4: Simplify right side
   10,978.12x = 66,701,983.56
5. Step 5: Solve for x
   x = 66,701,983.56/10,978.12
6. Step 6: Final answer
   x = 6,075.90