Finding the Fourth Proportional to 5,113.14, 7,667.73 and 1,992.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,113.14 : 7,667.73 = 1,992.72 : x
2. Step 2: Convert to fraction form
   5,113.14/7,667.73 = 1,992.72/x
3. Step 3: Cross multiply
   5,113.14x = 7,667.73 × 1,992.72
4. Step 4: Simplify right side
   5,113.14x = 15,279,638.93
5. Step 5: Solve for x
   x = 15,279,638.93/5,113.14
6. Step 6: Final answer
   x = 2,988.31