Finding the Fourth Proportional to 17,200.58, 25,809.89 and 12,495.61

Step by Step Solution

1. Step 1: Write the proportion equation
   17,200.58 : 25,809.89 = 12,495.61 : x
2. Step 2: Convert to fraction form
   17,200.58/25,809.89 = 12,495.61/x
3. Step 3: Cross multiply
   17,200.58x = 25,809.89 × 12,495.61
4. Step 4: Simplify right side
   17,200.58x = 322,510,257.10
5. Step 5: Solve for x
   x = 322,510,257.10/17,200.58
6. Step 6: Final answer
   x = 18,749.96