Finding the Fourth Proportional to 9,494.30, 14,242.80 and 2,918.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,494.30 : 14,242.80 = 2,918.72 : x
2. Step 2: Convert to fraction form
   9,494.30/14,242.80 = 2,918.72/x
3. Step 3: Cross multiply
   9,494.30x = 14,242.80 × 2,918.72
4. Step 4: Simplify right side
   9,494.30x = 41,570,745.22
5. Step 5: Solve for x
   x = 41,570,745.22/9,494.30
6. Step 6: Final answer
   x = 4,378.50