Finding the Fourth Proportional to 7,074.16, 10,677.72 and 7,074.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,074.16 : 10,677.72 = 7,074.16 : x
2. Step 2: Convert to fraction form
   7,074.16/10,677.72 = 7,074.16/x
3. Step 3: Cross multiply
   7,074.16x = 10,677.72 × 7,074.16
4. Step 4: Simplify right side
   7,074.16x = 75,535,899.72
5. Step 5: Solve for x
   x = 75,535,899.72/7,074.16
6. Step 6: Final answer
   x = 10,677.72