Finding the Fourth Proportional to 22,913.50, 31,620.56 and 13,961

Step by Step Solution

1. Step 1: Write the proportion equation
   22,913.50 : 31,620.56 = 13,961 : x
2. Step 2: Convert to fraction form
   22,913.50/31,620.56 = 13,961/x
3. Step 3: Cross multiply
   22,913.50x = 31,620.56 × 13,961
4. Step 4: Simplify right side
   22,913.50x = 441,454,638.16
5. Step 5: Solve for x
   x = 441,454,638.16/22,913.50
6. Step 6: Final answer
   x = 19,266.14