Finding the Fourth Proportional to 21,079.71, 31,595.54 and 7,036.47

Step by Step Solution

1. Step 1: Write the proportion equation
   21,079.71 : 31,595.54 = 7,036.47 : x
2. Step 2: Convert to fraction form
   21,079.71/31,595.54 = 7,036.47/x
3. Step 3: Cross multiply
   21,079.71x = 31,595.54 × 7,036.47
4. Step 4: Simplify right side
   21,079.71x = 222,321,034.16
5. Step 5: Solve for x
   x = 222,321,034.16/21,079.71
6. Step 6: Final answer
   x = 10,546.68