Finding the Fourth Proportional to 55,383.69, 83,071.52 and 21,643.38

Step by Step Solution

1. Step 1: Write the proportion equation
   55,383.69 : 83,071.52 = 21,643.38 : x
2. Step 2: Convert to fraction form
   55,383.69/83,071.52 = 21,643.38/x
3. Step 3: Cross multiply
   55,383.69x = 83,071.52 × 21,643.38
4. Step 4: Simplify right side
   55,383.69x = 1,797,947,950.96
5. Step 5: Solve for x
   x = 1,797,947,950.96/55,383.69
6. Step 6: Final answer
   x = 32,463.49