Finding the Fourth Proportional to 22,914.32, 34,379.72 and 14,139.04

Step by Step Solution

1. Step 1: Write the proportion equation
   22,914.32 : 34,379.72 = 14,139.04 : x
2. Step 2: Convert to fraction form
   22,914.32/34,379.72 = 14,139.04/x
3. Step 3: Cross multiply
   22,914.32x = 34,379.72 × 14,139.04
4. Step 4: Simplify right side
   22,914.32x = 486,096,236.27
5. Step 5: Solve for x
   x = 486,096,236.27/22,914.32
6. Step 6: Final answer
   x = 21,213.64