Finding the Fourth Proportional to 12,719.27, 17,552.59 and 7,130.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,719.27 : 17,552.59 = 7,130.27 : x
2. Step 2: Convert to fraction form
   12,719.27/17,552.59 = 7,130.27/x
3. Step 3: Cross multiply
   12,719.27x = 17,552.59 × 7,130.27
4. Step 4: Simplify right side
   12,719.27x = 125,154,705.90
5. Step 5: Solve for x
   x = 125,154,705.90/12,719.27
6. Step 6: Final answer
   x = 9,839.77