Finding the Fourth Proportional to 17,088.84, 25,607.34 and 12,685.68

Step by Step Solution

1. Step 1: Write the proportion equation
   17,088.84 : 25,607.34 = 12,685.68 : x
2. Step 2: Convert to fraction form
   17,088.84/25,607.34 = 12,685.68/x
3. Step 3: Cross multiply
   17,088.84x = 25,607.34 × 12,685.68
4. Step 4: Simplify right side
   17,088.84x = 324,846,520.89
5. Step 5: Solve for x
   x = 324,846,520.89/17,088.84
6. Step 6: Final answer
   x = 19,009.28