Finding the Fourth Proportional to 52,770.69, 79,156.56 and 13,327.81

Step by Step Solution

1. Step 1: Write the proportion equation
   52,770.69 : 79,156.56 = 13,327.81 : x
2. Step 2: Convert to fraction form
   52,770.69/79,156.56 = 13,327.81/x
3. Step 3: Cross multiply
   52,770.69x = 79,156.56 × 13,327.81
4. Step 4: Simplify right side
   52,770.69x = 1,054,983,369.05
5. Step 5: Solve for x
   x = 1,054,983,369.05/52,770.69
6. Step 6: Final answer
   x = 19,991.84