Finding the Fourth Proportional to 17,056.56, 25,590.01 and 8,742.47

Step by Step Solution

1. Step 1: Write the proportion equation
   17,056.56 : 25,590.01 = 8,742.47 : x
2. Step 2: Convert to fraction form
   17,056.56/25,590.01 = 8,742.47/x
3. Step 3: Cross multiply
   17,056.56x = 25,590.01 × 8,742.47
4. Step 4: Simplify right side
   17,056.56x = 223,719,894.72
5. Step 5: Solve for x
   x = 223,719,894.72/17,056.56
6. Step 6: Final answer
   x = 13,116.35