Finding the Fourth Proportional to 17,072.10, 25,611.57 and 7,211.34

Step by Step Solution

1. Step 1: Write the proportion equation
   17,072.10 : 25,611.57 = 7,211.34 : x
2. Step 2: Convert to fraction form
   17,072.10/25,611.57 = 7,211.34/x
3. Step 3: Cross multiply
   17,072.10x = 25,611.57 × 7,211.34
4. Step 4: Simplify right side
   17,072.10x = 184,693,739.20
5. Step 5: Solve for x
   x = 184,693,739.20/17,072.10
6. Step 6: Final answer
   x = 10,818.45