Finding the Fourth Proportional to 23,098.37, 31,875.74 and 12,488

Step by Step Solution

1. Step 1: Write the proportion equation
   23,098.37 : 31,875.74 = 12,488 : x
2. Step 2: Convert to fraction form
   23,098.37/31,875.74 = 12,488/x
3. Step 3: Cross multiply
   23,098.37x = 31,875.74 × 12,488
4. Step 4: Simplify right side
   23,098.37x = 398,064,241.12
5. Step 5: Solve for x
   x = 398,064,241.12/23,098.37
6. Step 6: Final answer
   x = 17,233.43