Finding the Fourth Proportional to 54,764.71, 82,111.71 and 21,488.11

Step by Step Solution

1. Step 1: Write the proportion equation
   54,764.71 : 82,111.71 = 21,488.11 : x
2. Step 2: Convert to fraction form
   54,764.71/82,111.71 = 21,488.11/x
3. Step 3: Cross multiply
   54,764.71x = 82,111.71 × 21,488.11
4. Step 4: Simplify right side
   54,764.71x = 1,764,425,456.77
5. Step 5: Solve for x
   x = 1,764,425,456.77/54,764.71
6. Step 6: Final answer
   x = 32,218.29