Finding the Fourth Proportional to 9,940.42, 14,906.94 and 2,918.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940.42 : 14,906.94 = 2,918.50 : x
2. Step 2: Convert to fraction form
   9,940.42/14,906.94 = 2,918.50/x
3. Step 3: Cross multiply
   9,940.42x = 14,906.94 × 2,918.50
4. Step 4: Simplify right side
   9,940.42x = 43,505,904.39
5. Step 5: Solve for x
   x = 43,505,904.39/9,940.42
6. Step 6: Final answer
   x = 4,376.67