Finding the Fourth Proportional to 54,446.72, 81,728.40 and 42,841.04

Step by Step Solution

1. Step 1: Write the proportion equation
   54,446.72 : 81,728.40 = 42,841.04 : x
2. Step 2: Convert to fraction form
   54,446.72/81,728.40 = 42,841.04/x
3. Step 3: Cross multiply
   54,446.72x = 81,728.40 × 42,841.04
4. Step 4: Simplify right side
   54,446.72x = 3,501,329,653.54
5. Step 5: Solve for x
   x = 3,501,329,653.54/54,446.72
6. Step 6: Final answer
   x = 64,307.45