Finding the Fourth Proportional to 55,733.58, 83,561.49 and 20,663.82

Step by Step Solution

1. Step 1: Write the proportion equation
   55,733.58 : 83,561.49 = 20,663.82 : x
2. Step 2: Convert to fraction form
   55,733.58/83,561.49 = 20,663.82/x
3. Step 3: Cross multiply
   55,733.58x = 83,561.49 × 20,663.82
4. Step 4: Simplify right side
   55,733.58x = 1,726,699,588.29
5. Step 5: Solve for x
   x = 1,726,699,588.29/55,733.58
6. Step 6: Final answer
   x = 30,981.31