Finding the Fourth Proportional to 21,071.56, 31,596.76 and 7,026.61

Step by Step Solution

1. Step 1: Write the proportion equation
   21,071.56 : 31,596.76 = 7,026.61 : x
2. Step 2: Convert to fraction form
   21,071.56/31,596.76 = 7,026.61/x
3. Step 3: Cross multiply
   21,071.56x = 31,596.76 × 7,026.61
4. Step 4: Simplify right side
   21,071.56x = 222,018,109.78
5. Step 5: Solve for x
   x = 222,018,109.78/21,071.56
6. Step 6: Final answer
   x = 10,536.39