Finding the Fourth Proportional to 7,005.60, 10,508.31 and 2,075.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,005.60 : 10,508.31 = 2,075.31 : x
2. Step 2: Convert to fraction form
   7,005.60/10,508.31 = 2,075.31/x
3. Step 3: Cross multiply
   7,005.60x = 10,508.31 × 2,075.31
4. Step 4: Simplify right side
   7,005.60x = 21,808,000.83
5. Step 5: Solve for x
   x = 21,808,000.83/7,005.60
6. Step 6: Final answer
   x = 3,112.94