Finding the Fourth Proportional to 7,317.12, 10,978.56 and 2,700.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,317.12 : 10,978.56 = 2,700.48 : x
2. Step 2: Convert to fraction form
   7,317.12/10,978.56 = 2,700.48/x
3. Step 3: Cross multiply
   7,317.12x = 10,978.56 × 2,700.48
4. Step 4: Simplify right side
   7,317.12x = 29,647,381.71
5. Step 5: Solve for x
   x = 29,647,381.71/7,317.12
6. Step 6: Final answer
   x = 4,051.78