Finding the Fourth Proportional to 12,419.73, 17,139.83 and 7,114.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,419.73 : 17,139.83 = 7,114.56 : x
2. Step 2: Convert to fraction form
   12,419.73/17,139.83 = 7,114.56/x
3. Step 3: Cross multiply
   12,419.73x = 17,139.83 × 7,114.56
4. Step 4: Simplify right side
   12,419.73x = 121,942,317.29
5. Step 5: Solve for x
   x = 121,942,317.29/12,419.73
6. Step 6: Final answer
   x = 9,818.44