Finding the Fourth Proportional to 10,885.37, 15,025.00 and 7,109.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,885.37 : 15,025.00 = 7,109.10 : x
2. Step 2: Convert to fraction form
   10,885.37/15,025.00 = 7,109.10/x
3. Step 3: Cross multiply
   10,885.37x = 15,025.00 × 7,109.10
4. Step 4: Simplify right side
   10,885.37x = 106,814,209.73
5. Step 5: Solve for x
   x = 106,814,209.73/10,885.37
6. Step 6: Final answer
   x = 9,812.64