Finding the Fourth Proportional to 12,428.68, 17,147.71 and 7,050.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,428.68 : 17,147.71 = 7,050.23 : x
2. Step 2: Convert to fraction form
   12,428.68/17,147.71 = 7,050.23/x
3. Step 3: Cross multiply
   12,428.68x = 17,147.71 × 7,050.23
4. Step 4: Simplify right side
   12,428.68x = 120,895,274.23
5. Step 5: Solve for x
   x = 120,895,274.23/12,428.68
6. Step 6: Final answer
   x = 9,727.12