Finding the Fourth Proportional to 34,581.96, 51,876.72 and 12,392.28

Step by Step Solution

1. Step 1: Write the proportion equation
   34,581.96 : 51,876.72 = 12,392.28 : x
2. Step 2: Convert to fraction form
   34,581.96/51,876.72 = 12,392.28/x
3. Step 3: Cross multiply
   34,581.96x = 51,876.72 × 12,392.28
4. Step 4: Simplify right side
   34,581.96x = 642,870,839.72
5. Step 5: Solve for x
   x = 642,870,839.72/34,581.96
6. Step 6: Final answer
   x = 18,589.77