Finding the Fourth Proportional to 12,719.53, 17,551.20 and 7,410.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,719.53 : 17,551.20 = 7,410.25 : x
2. Step 2: Convert to fraction form
   12,719.53/17,551.20 = 7,410.25/x
3. Step 3: Cross multiply
   12,719.53x = 17,551.20 × 7,410.25
4. Step 4: Simplify right side
   12,719.53x = 130,058,779.80
5. Step 5: Solve for x
   x = 130,058,779.80/12,719.53
6. Step 6: Final answer
   x = 10,225.12