Finding the Fourth Proportional to 46,284.78, 69,458.34 and 19,992.18

Step by Step Solution

1. Step 1: Write the proportion equation
   46,284.78 : 69,458.34 = 19,992.18 : x
2. Step 2: Convert to fraction form
   46,284.78/69,458.34 = 19,992.18/x
3. Step 3: Cross multiply
   46,284.78x = 69,458.34 × 19,992.18
4. Step 4: Simplify right side
   46,284.78x = 1,388,623,635.78
5. Step 5: Solve for x
   x = 1,388,623,635.78/46,284.78
6. Step 6: Final answer
   x = 30,001.73