Finding the Fourth Proportional to 17,942.71, 26,890.56 and 7,400.46

Step by Step Solution

1. Step 1: Write the proportion equation
   17,942.71 : 26,890.56 = 7,400.46 : x
2. Step 2: Convert to fraction form
   17,942.71/26,890.56 = 7,400.46/x
3. Step 3: Cross multiply
   17,942.71x = 26,890.56 × 7,400.46
4. Step 4: Simplify right side
   17,942.71x = 199,002,513.66
5. Step 5: Solve for x
   x = 199,002,513.66/17,942.71
6. Step 6: Final answer
   x = 11,091.00