Finding the Fourth Proportional to 17,158.72, 25,731.60 and 7,302.64

Step by Step Solution

1. Step 1: Write the proportion equation
   17,158.72 : 25,731.60 = 7,302.64 : x
2. Step 2: Convert to fraction form
   17,158.72/25,731.60 = 7,302.64/x
3. Step 3: Cross multiply
   17,158.72x = 25,731.60 × 7,302.64
4. Step 4: Simplify right side
   17,158.72x = 187,908,611.42
5. Step 5: Solve for x
   x = 187,908,611.42/17,158.72
6. Step 6: Final answer
   x = 10,951.20