Finding the Fourth Proportional to 5,137.61, 7,089.89 and 2,899.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,137.61 : 7,089.89 = 2,899.48 : x
2. Step 2: Convert to fraction form
   5,137.61/7,089.89 = 2,899.48/x
3. Step 3: Cross multiply
   5,137.61x = 7,089.89 × 2,899.48
4. Step 4: Simplify right side
   5,137.61x = 20,556,962.04
5. Step 5: Solve for x
   x = 20,556,962.04/5,137.61
6. Step 6: Final answer
   x = 4,001.27