Finding the Fourth Proportional to 35,992.82, 53,989.71 and 12,619.94

Step by Step Solution

1. Step 1: Write the proportion equation
   35,992.82 : 53,989.71 = 12,619.94 : x
2. Step 2: Convert to fraction form
   35,992.82/53,989.71 = 12,619.94/x
3. Step 3: Cross multiply
   35,992.82x = 53,989.71 × 12,619.94
4. Step 4: Simplify right side
   35,992.82x = 681,346,900.82
5. Step 5: Solve for x
   x = 681,346,900.82/35,992.82
6. Step 6: Final answer
   x = 18,930.08