Finding the Fourth Proportional to 7,806.39, 10,773.86 and 5,019.99

Step by Step Solution

1. Step 1: Write the proportion equation
   7,806.39 : 10,773.86 = 5,019.99 : x
2. Step 2: Convert to fraction form
   7,806.39/10,773.86 = 5,019.99/x
3. Step 3: Cross multiply
   7,806.39x = 10,773.86 × 5,019.99
4. Step 4: Simplify right side
   7,806.39x = 54,084,669.46
5. Step 5: Solve for x
   x = 54,084,669.46/7,806.39
6. Step 6: Final answer
   x = 6,928.26