Finding the Fourth Proportional to 51,404.42, 77,112.78 and 18,117.59

Step by Step Solution

1. Step 1: Write the proportion equation
   51,404.42 : 77,112.78 = 18,117.59 : x
2. Step 2: Convert to fraction form
   51,404.42/77,112.78 = 18,117.59/x
3. Step 3: Cross multiply
   51,404.42x = 77,112.78 × 18,117.59
4. Step 4: Simplify right side
   51,404.42x = 1,397,097,346.24
5. Step 5: Solve for x
   x = 1,397,097,346.24/51,404.42
6. Step 6: Final answer
   x = 27,178.55