Finding the Fourth Proportional to 53,280.72, 79,929.72 and 16,344.72

Step by Step Solution

1. Step 1: Write the proportion equation
   53,280.72 : 79,929.72 = 16,344.72 : x
2. Step 2: Convert to fraction form
   53,280.72/79,929.72 = 16,344.72/x
3. Step 3: Cross multiply
   53,280.72x = 79,929.72 × 16,344.72
4. Step 4: Simplify right side
   53,280.72x = 1,306,428,893.08
5. Step 5: Solve for x
   x = 1,306,428,893.08/53,280.72
6. Step 6: Final answer
   x = 24,519.73