Finding the Fourth Proportional to 15,443.77, 21,311.83 and 8,370.04

Step by Step Solution

1. Step 1: Write the proportion equation
   15,443.77 : 21,311.83 = 8,370.04 : x
2. Step 2: Convert to fraction form
   15,443.77/21,311.83 = 8,370.04/x
3. Step 3: Cross multiply
   15,443.77x = 21,311.83 × 8,370.04
4. Step 4: Simplify right side
   15,443.77x = 178,380,869.57
5. Step 5: Solve for x
   x = 178,380,869.57/15,443.77
6. Step 6: Final answer
   x = 11,550.34