Finding the Fourth Proportional to 23,013.88, 31,735.76 and 21,674.48

Step by Step Solution

1. Step 1: Write the proportion equation
   23,013.88 : 31,735.76 = 21,674.48 : x
2. Step 2: Convert to fraction form
   23,013.88/31,735.76 = 21,674.48/x
3. Step 3: Cross multiply
   23,013.88x = 31,735.76 × 21,674.48
4. Step 4: Simplify right side
   23,013.88x = 687,856,095.40
5. Step 5: Solve for x
   x = 687,856,095.40/23,013.88
6. Step 6: Final answer
   x = 29,888.75