Finding the Fourth Proportional to 6,978.16, 10,453.08 and 3,457.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,978.16 : 10,453.08 = 3,457.56 : x
2. Step 2: Convert to fraction form
   6,978.16/10,453.08 = 3,457.56/x
3. Step 3: Cross multiply
   6,978.16x = 10,453.08 × 3,457.56
4. Step 4: Simplify right side
   6,978.16x = 36,142,151.28
5. Step 5: Solve for x
   x = 36,142,151.28/6,978.16
6. Step 6: Final answer
   x = 5,179.32