Finding the Fourth Proportional to 11,928.50, 17,886.96 and 3,606.92

Step by Step Solution

1. Step 1: Write the proportion equation
   11,928.50 : 17,886.96 = 3,606.92 : x
2. Step 2: Convert to fraction form
   11,928.50/17,886.96 = 3,606.92/x
3. Step 3: Cross multiply
   11,928.50x = 17,886.96 × 3,606.92
4. Step 4: Simplify right side
   11,928.50x = 64,516,833.76
5. Step 5: Solve for x
   x = 64,516,833.76/11,928.50
6. Step 6: Final answer
   x = 5,408.63