Finding the Fourth Proportional to 10,919.46, 16,384.63 and 4,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,919.46 : 16,384.63 = 4,345.50 : x
2. Step 2: Convert to fraction form
   10,919.46/16,384.63 = 4,345.50/x
3. Step 3: Cross multiply
   10,919.46x = 16,384.63 × 4,345.50
4. Step 4: Simplify right side
   10,919.46x = 71,199,409.67
5. Step 5: Solve for x
   x = 71,199,409.67/10,919.46
6. Step 6: Final answer
   x = 6,520.41