Finding the Fourth Proportional to 5,105.89, 7,047.59 and 3,089.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,105.89 : 7,047.59 = 3,089.30 : x
2. Step 2: Convert to fraction form
   5,105.89/7,047.59 = 3,089.30/x
3. Step 3: Cross multiply
   5,105.89x = 7,047.59 × 3,089.30
4. Step 4: Simplify right side
   5,105.89x = 21,772,086.72
5. Step 5: Solve for x
   x = 21,772,086.72/5,105.89
6. Step 6: Final answer
   x = 4,264.11