Finding the Fourth Proportional to 5,111.01, 7,053.15 and 2,986.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.01 : 7,053.15 = 2,986.48 : x
2. Step 2: Convert to fraction form
   5,111.01/7,053.15 = 2,986.48/x
3. Step 3: Cross multiply
   5,111.01x = 7,053.15 × 2,986.48
4. Step 4: Simplify right side
   5,111.01x = 21,064,111.43
5. Step 5: Solve for x
   x = 21,064,111.43/5,111.01
6. Step 6: Final answer
   x = 4,121.32