Finding the Fourth Proportional to 11,810.71, 17,718.81 and 4,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,810.71 : 17,718.81 = 4,019.50 : x
2. Step 2: Convert to fraction form
   11,810.71/17,718.81 = 4,019.50/x
3. Step 3: Cross multiply
   11,810.71x = 17,718.81 × 4,019.50
4. Step 4: Simplify right side
   11,810.71x = 71,220,756.80
5. Step 5: Solve for x
   x = 71,220,756.80/11,810.71
6. Step 6: Final answer
   x = 6,030.18