Finding the Fourth Proportional to 5,158.86, 7,119.56 and 2,920.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,158.86 : 7,119.56 = 2,920.98 : x
2. Step 2: Convert to fraction form
   5,158.86/7,119.56 = 2,920.98/x
3. Step 3: Cross multiply
   5,158.86x = 7,119.56 × 2,920.98
4. Step 4: Simplify right side
   5,158.86x = 20,796,092.37
5. Step 5: Solve for x
   x = 20,796,092.37/5,158.86
6. Step 6: Final answer
   x = 4,031.14