Finding the Fourth Proportional to 6,929.89, 9,562.12 and 4,278.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,929.89 : 9,562.12 = 4,278.15 : x
2. Step 2: Convert to fraction form
   6,929.89/9,562.12 = 4,278.15/x
3. Step 3: Cross multiply
   6,929.89x = 9,562.12 × 4,278.15
4. Step 4: Simplify right side
   6,929.89x = 40,908,172.98
5. Step 5: Solve for x
   x = 40,908,172.98/6,929.89
6. Step 6: Final answer
   x = 5,903.15