Finding the Fourth Proportional to 11,237.31, 16,855.83 and 2,916.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,237.31 : 16,855.83 = 2,916.59 : x
2. Step 2: Convert to fraction form
   11,237.31/16,855.83 = 2,916.59/x
3. Step 3: Cross multiply
   11,237.31x = 16,855.83 × 2,916.59
4. Step 4: Simplify right side
   11,237.31x = 49,161,460.94
5. Step 5: Solve for x
   x = 49,161,460.94/11,237.31
6. Step 6: Final answer
   x = 4,374.84