Finding the Fourth Proportional to 13,900.76, 19,183.22 and 7,613

Step by Step Solution

1. Step 1: Write the proportion equation
   13,900.76 : 19,183.22 = 7,613 : x
2. Step 2: Convert to fraction form
   13,900.76/19,183.22 = 7,613/x
3. Step 3: Cross multiply
   13,900.76x = 19,183.22 × 7,613
4. Step 4: Simplify right side
   13,900.76x = 146,041,853.86
5. Step 5: Solve for x
   x = 146,041,853.86/13,900.76
6. Step 6: Final answer
   x = 10,506.03