Finding the Fourth Proportional to 10,913.58, 16,366.89 and 3,516.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,913.58 : 16,366.89 = 3,516.39 : x
2. Step 2: Convert to fraction form
   10,913.58/16,366.89 = 3,516.39/x
3. Step 3: Cross multiply
   10,913.58x = 16,366.89 × 3,516.39
4. Step 4: Simplify right side
   10,913.58x = 57,552,368.33
5. Step 5: Solve for x
   x = 57,552,368.33/10,913.58
6. Step 6: Final answer
   x = 5,273.46