Finding the Fourth Proportional to 11,345.32, 17,019.79 and 3,951.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,345.32 : 17,019.79 = 3,951.88 : x
2. Step 2: Convert to fraction form
   11,345.32/17,019.79 = 3,951.88/x
3. Step 3: Cross multiply
   11,345.32x = 17,019.79 × 3,951.88
4. Step 4: Simplify right side
   11,345.32x = 67,260,167.71
5. Step 5: Solve for x
   x = 67,260,167.71/11,345.32
6. Step 6: Final answer
   x = 5,928.45