Finding the Fourth Proportional to 8,913.78, 13,369.68 and 2,340.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,913.78 : 13,369.68 = 2,340.72 : x
2. Step 2: Convert to fraction form
   8,913.78/13,369.68 = 2,340.72/x
3. Step 3: Cross multiply
   8,913.78x = 13,369.68 × 2,340.72
4. Step 4: Simplify right side
   8,913.78x = 31,294,677.37
5. Step 5: Solve for x
   x = 31,294,677.37/8,913.78
6. Step 6: Final answer
   x = 3,510.82