Finding the Fourth Proportional to 8,935.89, 13,404.51 and 3,012.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,935.89 : 13,404.51 = 3,012.81 : x
2. Step 2: Convert to fraction form
   8,935.89/13,404.51 = 3,012.81/x
3. Step 3: Cross multiply
   8,935.89x = 13,404.51 × 3,012.81
4. Step 4: Simplify right side
   8,935.89x = 40,385,241.77
5. Step 5: Solve for x
   x = 40,385,241.77/8,935.89
6. Step 6: Final answer
   x = 4,519.44