Finding the Fourth Proportional to 5,164.89, 7,127.55 and 2,807.04

Step by Step Solution

1. Step 1: Write the proportion equation
   5,164.89 : 7,127.55 = 2,807.04 : x
2. Step 2: Convert to fraction form
   5,164.89/7,127.55 = 2,807.04/x
3. Step 3: Cross multiply
   5,164.89x = 7,127.55 × 2,807.04
4. Step 4: Simplify right side
   5,164.89x = 20,007,317.95
5. Step 5: Solve for x
   x = 20,007,317.95/5,164.89
6. Step 6: Final answer
   x = 3,873.72