Finding the Fourth Proportional to 17,315.58, 25,991.83 and 16,688.19

Step by Step Solution

1. Step 1: Write the proportion equation
   17,315.58 : 25,991.83 = 16,688.19 : x
2. Step 2: Convert to fraction form
   17,315.58/25,991.83 = 16,688.19/x
3. Step 3: Cross multiply
   17,315.58x = 25,991.83 × 16,688.19
4. Step 4: Simplify right side
   17,315.58x = 433,756,715.82
5. Step 5: Solve for x
   x = 433,756,715.82/17,315.58
6. Step 6: Final answer
   x = 25,050.08