Finding the Fourth Proportional to 6,930.58, 10,392.12 and 3,030.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,930.58 : 10,392.12 = 3,030.42 : x
2. Step 2: Convert to fraction form
   6,930.58/10,392.12 = 3,030.42/x
3. Step 3: Cross multiply
   6,930.58x = 10,392.12 × 3,030.42
4. Step 4: Simplify right side
   6,930.58x = 31,492,488.29
5. Step 5: Solve for x
   x = 31,492,488.29/6,930.58
6. Step 6: Final answer
   x = 4,543.99