Finding the Fourth Proportional to 10,637.89, 15,949.98 and 5,091.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,637.89 : 15,949.98 = 5,091.10 : x
2. Step 2: Convert to fraction form
   10,637.89/15,949.98 = 5,091.10/x
3. Step 3: Cross multiply
   10,637.89x = 15,949.98 × 5,091.10
4. Step 4: Simplify right side
   10,637.89x = 81,202,903.30
5. Step 5: Solve for x
   x = 81,202,903.30/10,637.89
6. Step 6: Final answer
   x = 7,633.37