Finding the Fourth Proportional to 52,835.63, 72,912.82 and 28,963.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52,835.63 : 72,912.82 = 28,963.31 : x
2. Step 2: Convert to fraction form
   52,835.63/72,912.82 = 28,963.31/x
3. Step 3: Cross multiply
   52,835.63x = 72,912.82 × 28,963.31
4. Step 4: Simplify right side
   52,835.63x = 2,111,796,608.63
5. Step 5: Solve for x
   x = 2,111,796,608.63/52,835.63
6. Step 6: Final answer
   x = 39,969.18