Finding the Fourth Proportional to 21,053.31, 31,573.39 and 7,010.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,053.31 : 31,573.39 = 7,010.06 : x
2. Step 2: Convert to fraction form
   21,053.31/31,573.39 = 7,010.06/x
3. Step 3: Cross multiply
   21,053.31x = 31,573.39 × 7,010.06
4. Step 4: Simplify right side
   21,053.31x = 221,331,358.30
5. Step 5: Solve for x
   x = 221,331,358.30/21,053.31
6. Step 6: Final answer
   x = 10,512.90