Finding the Fourth Proportional to 7,914.72, 10,926 and 5,121.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,914.72 : 10,926 = 5,121.12 : x
2. Step 2: Convert to fraction form
   7,914.72/10,926 = 5,121.12/x
3. Step 3: Cross multiply
   7,914.72x = 10,926 × 5,121.12
4. Step 4: Simplify right side
   7,914.72x = 55,953,357.12
5. Step 5: Solve for x
   x = 55,953,357.12/7,914.72
6. Step 6: Final answer
   x = 7,069.53