Finding the Fourth Proportional to 146,969.76, 219,456.47 and 142,983.96

Step by Step Solution

1. Step 1: Write the proportion equation
   146,969.76 : 219,456.47 = 142,983.96 : x
2. Step 2: Convert to fraction form
   146,969.76/219,456.47 = 142,983.96/x
3. Step 3: Cross multiply
   146,969.76x = 219,456.47 × 142,983.96
4. Step 4: Simplify right side
   146,969.76x = 31,378,755,128.22
5. Step 5: Solve for x
   x = 31,378,755,128.22/146,969.76
6. Step 6: Final answer
   x = 213,504.84