Finding the Fourth Proportional to 17,681.10, 26,518.41 and 7,150.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17,681.10 : 26,518.41 = 7,150.56 : x
2. Step 2: Convert to fraction form
   17,681.10/26,518.41 = 7,150.56/x
3. Step 3: Cross multiply
   17,681.10x = 26,518.41 × 7,150.56
4. Step 4: Simplify right side
   17,681.10x = 189,621,481.81
5. Step 5: Solve for x
   x = 189,621,481.81/17,681.10
6. Step 6: Final answer
   x = 10,724.53