Finding the Fourth Proportional to 23,098.50, 31,876.01 and 12,488.21

Step by Step Solution

1. Step 1: Write the proportion equation
   23,098.50 : 31,876.01 = 12,488.21 : x
2. Step 2: Convert to fraction form
   23,098.50/31,876.01 = 12,488.21/x
3. Step 3: Cross multiply
   23,098.50x = 31,876.01 × 12,488.21
4. Step 4: Simplify right side
   23,098.50x = 398,074,321.63
5. Step 5: Solve for x
   x = 398,074,321.63/23,098.50
6. Step 6: Final answer
   x = 17,233.77