Finding the Fourth Proportional to 17,191.76, 25,783.47 and 12,566.25

Step by Step Solution

1. Step 1: Write the proportion equation
   17,191.76 : 25,783.47 = 12,566.25 : x
2. Step 2: Convert to fraction form
   17,191.76/25,783.47 = 12,566.25/x
3. Step 3: Cross multiply
   17,191.76x = 25,783.47 × 12,566.25
4. Step 4: Simplify right side
   17,191.76x = 324,001,529.89
5. Step 5: Solve for x
   x = 324,001,529.89/17,191.76
6. Step 6: Final answer
   x = 18,846.33