Finding the Fourth Proportional to 12,510.36, 18,772.83 and 5,113.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,510.36 : 18,772.83 = 5,113.71 : x
2. Step 2: Convert to fraction form
   12,510.36/18,772.83 = 5,113.71/x
3. Step 3: Cross multiply
   12,510.36x = 18,772.83 × 5,113.71
4. Step 4: Simplify right side
   12,510.36x = 95,998,808.50
5. Step 5: Solve for x
   x = 95,998,808.50/12,510.36
6. Step 6: Final answer
   x = 7,673.54