Finding the Fourth Proportional to 23,001.98, 31,742 and 12,930.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,001.98 : 31,742 = 12,930.18 : x
2. Step 2: Convert to fraction form
   23,001.98/31,742 = 12,930.18/x
3. Step 3: Cross multiply
   23,001.98x = 31,742 × 12,930.18
4. Step 4: Simplify right side
   23,001.98x = 410,429,773.56
5. Step 5: Solve for x
   x = 410,429,773.56/23,001.98
6. Step 6: Final answer
   x = 17,843.24