Finding the Fourth Proportional to 43,402.84, 65,082.71 and 13,816.83

Step by Step Solution

1. Step 1: Write the proportion equation
   43,402.84 : 65,082.71 = 13,816.83 : x
2. Step 2: Convert to fraction form
   43,402.84/65,082.71 = 13,816.83/x
3. Step 3: Cross multiply
   43,402.84x = 65,082.71 × 13,816.83
4. Step 4: Simplify right side
   43,402.84x = 899,236,740.01
5. Step 5: Solve for x
   x = 899,236,740.01/43,402.84
6. Step 6: Final answer
   x = 20,718.38