Finding the Fourth Proportional to 11,419.40, 17,131.72 and 4,845.84

Step by Step Solution

1. Step 1: Write the proportion equation
   11,419.40 : 17,131.72 = 4,845.84 : x
2. Step 2: Convert to fraction form
   11,419.40/17,131.72 = 4,845.84/x
3. Step 3: Cross multiply
   11,419.40x = 17,131.72 × 4,845.84
4. Step 4: Simplify right side
   11,419.40x = 83,017,574.04
5. Step 5: Solve for x
   x = 83,017,574.04/11,419.40
6. Step 6: Final answer
   x = 7,269.87