Finding the Fourth Proportional to 23,978.14, 35,977.58 and 12,871.86

Step by Step Solution

1. Step 1: Write the proportion equation
   23,978.14 : 35,977.58 = 12,871.86 : x
2. Step 2: Convert to fraction form
   23,978.14/35,977.58 = 12,871.86/x
3. Step 3: Cross multiply
   23,978.14x = 35,977.58 × 12,871.86
4. Step 4: Simplify right side
   23,978.14x = 463,098,372.90
5. Step 5: Solve for x
   x = 463,098,372.90/23,978.14
6. Step 6: Final answer
   x = 19,313.36