Finding the Fourth Proportional to 16,991.56, 23,426.58 and 10,693

Step by Step Solution

1. Step 1: Write the proportion equation
   16,991.56 : 23,426.58 = 10,693 : x
2. Step 2: Convert to fraction form
   16,991.56/23,426.58 = 10,693/x
3. Step 3: Cross multiply
   16,991.56x = 23,426.58 × 10,693
4. Step 4: Simplify right side
   16,991.56x = 250,500,419.94
5. Step 5: Solve for x
   x = 250,500,419.94/16,991.56
6. Step 6: Final answer
   x = 14,742.64