Finding the Fourth Proportional to 53,178.72, 79,768.34 and 13,733.10

Step by Step Solution

1. Step 1: Write the proportion equation
   53,178.72 : 79,768.34 = 13,733.10 : x
2. Step 2: Convert to fraction form
   53,178.72/79,768.34 = 13,733.10/x
3. Step 3: Cross multiply
   53,178.72x = 79,768.34 × 13,733.10
4. Step 4: Simplify right side
   53,178.72x = 1,095,466,590.05
5. Step 5: Solve for x
   x = 1,095,466,590.05/53,178.72
6. Step 6: Final answer
   x = 20,599.72