Finding the Fourth Proportional to 55,129.98, 82,722.33 and 21,849.31

Step by Step Solution

1. Step 1: Write the proportion equation
   55,129.98 : 82,722.33 = 21,849.31 : x
2. Step 2: Convert to fraction form
   55,129.98/82,722.33 = 21,849.31/x
3. Step 3: Cross multiply
   55,129.98x = 82,722.33 × 21,849.31
4. Step 4: Simplify right side
   55,129.98x = 1,807,425,935.50
5. Step 5: Solve for x
   x = 1,807,425,935.50/55,129.98
6. Step 6: Final answer
   x = 32,784.81