Finding the Fourth Proportional to 23,671.47, 35,510.60 and 7,871.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,671.47 : 35,510.60 = 7,871.31 : x
2. Step 2: Convert to fraction form
   23,671.47/35,510.60 = 7,871.31/x
3. Step 3: Cross multiply
   23,671.47x = 35,510.60 × 7,871.31
4. Step 4: Simplify right side
   23,671.47x = 279,514,960.56
5. Step 5: Solve for x
   x = 279,514,960.56/23,671.47
6. Step 6: Final answer
   x = 11,808.09