Finding the Fourth Proportional to 51,498.48, 77,238.18 and 18,218.82

Step by Step Solution

1. Step 1: Write the proportion equation
   51,498.48 : 77,238.18 = 18,218.82 : x
2. Step 2: Convert to fraction form
   51,498.48/77,238.18 = 18,218.82/x
3. Step 3: Cross multiply
   51,498.48x = 77,238.18 × 18,218.82
4. Step 4: Simplify right side
   51,498.48x = 1,407,188,498.55
5. Step 5: Solve for x
   x = 1,407,188,498.55/51,498.48
6. Step 6: Final answer
   x = 27,324.85