Finding the Fourth Proportional to 11,683.78, 17,525.71 and 2,918.70

Step by Step Solution

1. Step 1: Write the proportion equation
   11,683.78 : 17,525.71 = 2,918.70 : x
2. Step 2: Convert to fraction form
   11,683.78/17,525.71 = 2,918.70/x
3. Step 3: Cross multiply
   11,683.78x = 17,525.71 × 2,918.70
4. Step 4: Simplify right side
   11,683.78x = 51,152,293.43
5. Step 5: Solve for x
   x = 51,152,293.43/11,683.78
6. Step 6: Final answer
   x = 4,378.06