Finding the Fourth Proportional to 6,907.30, 10,364.55 and 3,012.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,907.30 : 10,364.55 = 3,012.10 : x
2. Step 2: Convert to fraction form
   6,907.30/10,364.55 = 3,012.10/x
3. Step 3: Cross multiply
   6,907.30x = 10,364.55 × 3,012.10
4. Step 4: Simplify right side
   6,907.30x = 31,219,061.06
5. Step 5: Solve for x
   x = 31,219,061.06/6,907.30
6. Step 6: Final answer
   x = 4,519.72