Finding the Fourth Proportional to 23,063.34, 31,830.42 and 12,993.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,063.34 : 31,830.42 = 12,993.72 : x
2. Step 2: Convert to fraction form
   23,063.34/31,830.42 = 12,993.72/x
3. Step 3: Cross multiply
   23,063.34x = 31,830.42 × 12,993.72
4. Step 4: Simplify right side
   23,063.34x = 413,595,564.96
5. Step 5: Solve for x
   x = 413,595,564.96/23,063.34
6. Step 6: Final answer
   x = 17,933.03