Finding the Fourth Proportional to 10,721.31, 16,054.42 and 7,012.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,721.31 : 16,054.42 = 7,012.73 : x
2. Step 2: Convert to fraction form
   10,721.31/16,054.42 = 7,012.73/x
3. Step 3: Cross multiply
   10,721.31x = 16,054.42 × 7,012.73
4. Step 4: Simplify right side
   10,721.31x = 112,585,312.77
5. Step 5: Solve for x
   x = 112,585,312.77/10,721.31
6. Step 6: Final answer
   x = 10,501.08