Finding the Fourth Proportional to 46,821.57, 70,234.41 and 13,545

Step by Step Solution

1. Step 1: Write the proportion equation
   46,821.57 : 70,234.41 = 13,545 : x
2. Step 2: Convert to fraction form
   46,821.57/70,234.41 = 13,545/x
3. Step 3: Cross multiply
   46,821.57x = 70,234.41 × 13,545
4. Step 4: Simplify right side
   46,821.57x = 951,325,083.45
5. Step 5: Solve for x
   x = 951,325,083.45/46,821.57
6. Step 6: Final answer
   x = 20,318.09