Finding the Fourth Proportional to 213,667.84, 320,519.96 and 55,896.04

Step by Step Solution

1. Step 1: Write the proportion equation
   213,667.84 : 320,519.96 = 55,896.04 : x
2. Step 2: Convert to fraction form
   213,667.84/320,519.96 = 55,896.04/x
3. Step 3: Cross multiply
   213,667.84x = 320,519.96 × 55,896.04
4. Step 4: Simplify right side
   213,667.84x = 17,915,796,504.96
5. Step 5: Solve for x
   x = 17,915,796,504.96/213,667.84
6. Step 6: Final answer
   x = 83,848.82