Finding the Fourth Proportional to 19,180.59, 28,759.37 and 7,499.31

Step by Step Solution

1. Step 1: Write the proportion equation
   19,180.59 : 28,759.37 = 7,499.31 : x
2. Step 2: Convert to fraction form
   19,180.59/28,759.37 = 7,499.31/x
3. Step 3: Cross multiply
   19,180.59x = 28,759.37 × 7,499.31
4. Step 4: Simplify right side
   19,180.59x = 215,675,393.54
5. Step 5: Solve for x
   x = 215,675,393.54/19,180.59
6. Step 6: Final answer
   x = 11,244.46