Finding the Fourth Proportional to 23,069.95, 31,836.24 and 12,999.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,069.95 : 31,836.24 = 12,999.42 : x
2. Step 2: Convert to fraction form
   23,069.95/31,836.24 = 12,999.42/x
3. Step 3: Cross multiply
   23,069.95x = 31,836.24 × 12,999.42
4. Step 4: Simplify right side
   23,069.95x = 413,852,654.98
5. Step 5: Solve for x
   x = 413,852,654.98/23,069.95
6. Step 6: Final answer
   x = 17,939.04