Finding the Fourth Proportional to 10,819.89, 14,931.64 and 6,346.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,819.89 : 14,931.64 = 6,346.87 : x
2. Step 2: Convert to fraction form
   10,819.89/14,931.64 = 6,346.87/x
3. Step 3: Cross multiply
   10,819.89x = 14,931.64 × 6,346.87
4. Step 4: Simplify right side
   10,819.89x = 94,769,103.31
5. Step 5: Solve for x
   x = 94,769,103.31/10,819.89
6. Step 6: Final answer
   x = 8,758.79