Finding the Fourth Proportional to 11,238.31, 16,857.33 and 2,917.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,238.31 : 16,857.33 = 2,917.59 : x
2. Step 2: Convert to fraction form
   11,238.31/16,857.33 = 2,917.59/x
3. Step 3: Cross multiply
   11,238.31x = 16,857.33 × 2,917.59
4. Step 4: Simplify right side
   11,238.31x = 49,182,777.43
5. Step 5: Solve for x
   x = 49,182,777.43/11,238.31
6. Step 6: Final answer
   x = 4,376.35