Finding the Fourth Proportional to 21,071.39, 31,609.31 and 7,026.53

Step by Step Solution

1. Step 1: Write the proportion equation
   21,071.39 : 31,609.31 = 7,026.53 : x
2. Step 2: Convert to fraction form
   21,071.39/31,609.31 = 7,026.53/x
3. Step 3: Cross multiply
   21,071.39x = 31,609.31 × 7,026.53
4. Step 4: Simplify right side
   21,071.39x = 222,103,624.51
5. Step 5: Solve for x
   x = 222,103,624.51/21,071.39
6. Step 6: Final answer
   x = 10,540.53