Finding the Fourth Proportional to 23,063.58, 31,830.80 and 12,993.98

Step by Step Solution

1. Step 1: Write the proportion equation
   23,063.58 : 31,830.80 = 12,993.98 : x
2. Step 2: Convert to fraction form
   23,063.58/31,830.80 = 12,993.98/x
3. Step 3: Cross multiply
   23,063.58x = 31,830.80 × 12,993.98
4. Step 4: Simplify right side
   23,063.58x = 413,608,554.46
5. Step 5: Solve for x
   x = 413,608,554.46/23,063.58
6. Step 6: Final answer
   x = 17,933.41