Finding the Fourth Proportional to 17,656.27, 26,478.51 and 7,123.57

Step by Step Solution

1. Step 1: Write the proportion equation
   17,656.27 : 26,478.51 = 7,123.57 : x
2. Step 2: Convert to fraction form
   17,656.27/26,478.51 = 7,123.57/x
3. Step 3: Cross multiply
   17,656.27x = 26,478.51 × 7,123.57
4. Step 4: Simplify right side
   17,656.27x = 188,621,519.48
5. Step 5: Solve for x
   x = 188,621,519.48/17,656.27
6. Step 6: Final answer
   x = 10,682.98