Finding the Fourth Proportional to 17,103.56, 25,654.54 and 5,415.24

Step by Step Solution

1. Step 1: Write the proportion equation
   17,103.56 : 25,654.54 = 5,415.24 : x
2. Step 2: Convert to fraction form
   17,103.56/25,654.54 = 5,415.24/x
3. Step 3: Cross multiply
   17,103.56x = 25,654.54 × 5,415.24
4. Step 4: Simplify right side
   17,103.56x = 138,925,491.19
5. Step 5: Solve for x
   x = 138,925,491.19/17,103.56
6. Step 6: Final answer
   x = 8,122.61