Finding the Fourth Proportional to 10,697.78, 16,040.78 and 3,300.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,697.78 : 16,040.78 = 3,300.18 : x
2. Step 2: Convert to fraction form
   10,697.78/16,040.78 = 3,300.18/x
3. Step 3: Cross multiply
   10,697.78x = 16,040.78 × 3,300.18
4. Step 4: Simplify right side
   10,697.78x = 52,937,461.34
5. Step 5: Solve for x
   x = 52,937,461.34/10,697.78
6. Step 6: Final answer
   x = 4,948.45