Finding the Fourth Proportional to 5,007.89, 7,500.89 and 2,538.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,007.89 : 7,500.89 = 2,538.47 : x
2. Step 2: Convert to fraction form
   5,007.89/7,500.89 = 2,538.47/x
3. Step 3: Cross multiply
   5,007.89x = 7,500.89 × 2,538.47
4. Step 4: Simplify right side
   5,007.89x = 19,040,784.24
5. Step 5: Solve for x
   x = 19,040,784.24/5,007.89
6. Step 6: Final answer
   x = 3,802.16