Finding the Fourth Proportional to 12,130.72, 16,741.56 and 7,419.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,130.72 : 16,741.56 = 7,419.76 : x
2. Step 2: Convert to fraction form
   12,130.72/16,741.56 = 7,419.76/x
3. Step 3: Cross multiply
   12,130.72x = 16,741.56 × 7,419.76
4. Step 4: Simplify right side
   12,130.72x = 124,218,357.23
5. Step 5: Solve for x
   x = 124,218,357.23/12,130.72
6. Step 6: Final answer
   x = 10,239.98