Finding the Fourth Proportional to 5,109.00, 7,050.45 and 2,870.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,109.00 : 7,050.45 = 2,870.88 : x
2. Step 2: Convert to fraction form
   5,109.00/7,050.45 = 2,870.88/x
3. Step 3: Cross multiply
   5,109.00x = 7,050.45 × 2,870.88
4. Step 4: Simplify right side
   5,109.00x = 20,240,960.64
5. Step 5: Solve for x
   x = 20,240,960.64/5,109.00
6. Step 6: Final answer
   x = 3,961.83