Finding the Fourth Proportional to 7,419.58, 11,133.72 and 2,742.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,419.58 : 11,133.72 = 2,742.89 : x
2. Step 2: Convert to fraction form
   7,419.58/11,133.72 = 2,742.89/x
3. Step 3: Cross multiply
   7,419.58x = 11,133.72 × 2,742.89
4. Step 4: Simplify right side
   7,419.58x = 30,538,513.58
5. Step 5: Solve for x
   x = 30,538,513.58/7,419.58
6. Step 6: Final answer
   x = 4,115.94