Finding the Fourth Proportional to 11,916.86, 17,875.43 and 3,596.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,916.86 : 17,875.43 = 3,596.96 : x
2. Step 2: Convert to fraction form
   11,916.86/17,875.43 = 3,596.96/x
3. Step 3: Cross multiply
   11,916.86x = 17,875.43 × 3,596.96
4. Step 4: Simplify right side
   11,916.86x = 64,297,260.37
5. Step 5: Solve for x
   x = 64,297,260.37/11,916.86
6. Step 6: Final answer
   x = 5,395.49