Finding the Fourth Proportional to 53,744.54, 79,940.18 and 53,564.72

Step by Step Solution

1. Step 1: Write the proportion equation
   53,744.54 : 79,940.18 = 53,564.72 : x
2. Step 2: Convert to fraction form
   53,744.54/79,940.18 = 53,564.72/x
3. Step 3: Cross multiply
   53,744.54x = 79,940.18 × 53,564.72
4. Step 4: Simplify right side
   53,744.54x = 4,281,973,358.45
5. Step 5: Solve for x
   x = 4,281,973,358.45/53,744.54
6. Step 6: Final answer
   x = 79,672.71