Finding the Fourth Proportional to 5,158.88, 7,119.38 and 2,801.00

Step by Step Solution

1. Step 1: Write the proportion equation
   5,158.88 : 7,119.38 = 2,801.00 : x
2. Step 2: Convert to fraction form
   5,158.88/7,119.38 = 2,801.00/x
3. Step 3: Cross multiply
   5,158.88x = 7,119.38 × 2,801.00
4. Step 4: Simplify right side
   5,158.88x = 19,941,333.78
5. Step 5: Solve for x
   x = 19,941,333.78/5,158.88
6. Step 6: Final answer
   x = 3,865.44