Finding the Fourth Proportional to 11,009.67, 16,513.61 and 3,112.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,009.67 : 16,513.61 = 3,112.04 : x
2. Step 2: Convert to fraction form
   11,009.67/16,513.61 = 3,112.04/x
3. Step 3: Cross multiply
   11,009.67x = 16,513.61 × 3,112.04
4. Step 4: Simplify right side
   11,009.67x = 51,390,916.74
5. Step 5: Solve for x
   x = 51,390,916.74/11,009.67
6. Step 6: Final answer
   x = 4,667.80