Finding the Fourth Proportional to 54,684.72, 81,932.58 and 42,700.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,684.72 : 81,932.58 = 42,700.50 : x
2. Step 2: Convert to fraction form
   54,684.72/81,932.58 = 42,700.50/x
3. Step 3: Cross multiply
   54,684.72x = 81,932.58 × 42,700.50
4. Step 4: Simplify right side
   54,684.72x = 3,498,562,132.29
5. Step 5: Solve for x
   x = 3,498,562,132.29/54,684.72
6. Step 6: Final answer
   x = 63,976.96