Finding the Fourth Proportional to 23,687, 35,527.98 and 12,581.90

Step by Step Solution

1. Step 1: Write the proportion equation
   23,687 : 35,527.98 = 12,581.90 : x
2. Step 2: Convert to fraction form
   23,687/35,527.98 = 12,581.90/x
3. Step 3: Cross multiply
   23,687x = 35,527.98 × 12,581.90
4. Step 4: Simplify right side
   23,687x = 447,009,491.56
5. Step 5: Solve for x
   x = 447,009,491.56/23,687
6. Step 6: Final answer
   x = 18,871.51