Finding the Fourth Proportional to 5,112.93, 7,667.76 and 1,992.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,112.93 : 7,667.76 = 1,992.18 : x
2. Step 2: Convert to fraction form
   5,112.93/7,667.76 = 1,992.18/x
3. Step 3: Cross multiply
   5,112.93x = 7,667.76 × 1,992.18
4. Step 4: Simplify right side
   5,112.93x = 15,275,551.21
5. Step 5: Solve for x
   x = 15,275,551.21/5,112.93
6. Step 6: Final answer
   x = 2,987.63