Finding the Fourth Proportional to 43,446.51, 65,164.32 and 13,861.89

Step by Step Solution

1. Step 1: Write the proportion equation
   43,446.51 : 65,164.32 = 13,861.89 : x
2. Step 2: Convert to fraction form
   43,446.51/65,164.32 = 13,861.89/x
3. Step 3: Cross multiply
   43,446.51x = 65,164.32 × 13,861.89
4. Step 4: Simplify right side
   43,446.51x = 903,300,635.76
5. Step 5: Solve for x
   x = 903,300,635.76/43,446.51
6. Step 6: Final answer
   x = 20,791.10