Finding the Fourth Proportional to 40,991.69, 56,568.72 and 23,087

Step by Step Solution

1. Step 1: Write the proportion equation
   40,991.69 : 56,568.72 = 23,087 : x
2. Step 2: Convert to fraction form
   40,991.69/56,568.72 = 23,087/x
3. Step 3: Cross multiply
   40,991.69x = 56,568.72 × 23,087
4. Step 4: Simplify right side
   40,991.69x = 1,306,002,038.64
5. Step 5: Solve for x
   x = 1,306,002,038.64/40,991.69
6. Step 6: Final answer
   x = 31,860.17