Finding the Fourth Proportional to 22,914.09, 31,621.32 and 13,959.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,914.09 : 31,621.32 = 13,959.72 : x
2. Step 2: Convert to fraction form
   22,914.09/31,621.32 = 13,959.72/x
3. Step 3: Cross multiply
   22,914.09x = 31,621.32 × 13,959.72
4. Step 4: Simplify right side
   22,914.09x = 441,424,773.23
5. Step 5: Solve for x
   x = 441,424,773.23/22,914.09
6. Step 6: Final answer
   x = 19,264.34