Finding the Fourth Proportional to 6,870.06, 10,307.55 and 2,922.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.06 : 10,307.55 = 2,922.30 : x
2. Step 2: Convert to fraction form
   6,870.06/10,307.55 = 2,922.30/x
3. Step 3: Cross multiply
   6,870.06x = 10,307.55 × 2,922.30
4. Step 4: Simplify right side
   6,870.06x = 30,121,753.37
5. Step 5: Solve for x
   x = 30,121,753.37/6,870.06
6. Step 6: Final answer
   x = 4,384.50