Finding the Fourth Proportional to 39,535.49, 54,558.50 and 21,630.24

Step by Step Solution

1. Step 1: Write the proportion equation
   39,535.49 : 54,558.50 = 21,630.24 : x
2. Step 2: Convert to fraction form
   39,535.49/54,558.50 = 21,630.24/x
3. Step 3: Cross multiply
   39,535.49x = 54,558.50 × 21,630.24
4. Step 4: Simplify right side
   39,535.49x = 1,180,113,340.89
5. Step 5: Solve for x
   x = 1,180,113,340.89/39,535.49
6. Step 6: Final answer
   x = 29,849.47