Finding the Fourth Proportional to 11,216.56, 16,827.32 and 3,425.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,216.56 : 16,827.32 = 3,425.98 : x
2. Step 2: Convert to fraction form
   11,216.56/16,827.32 = 3,425.98/x
3. Step 3: Cross multiply
   11,216.56x = 16,827.32 × 3,425.98
4. Step 4: Simplify right side
   11,216.56x = 57,650,044.64
5. Step 5: Solve for x
   x = 57,650,044.64/11,216.56
6. Step 6: Final answer
   x = 5,139.73