Finding the Fourth Proportional to 21,065.82, 31,602.88 and 7,025.67

Step by Step Solution

1. Step 1: Write the proportion equation
   21,065.82 : 31,602.88 = 7,025.67 : x
2. Step 2: Convert to fraction form
   21,065.82/31,602.88 = 7,025.67/x
3. Step 3: Cross multiply
   21,065.82x = 31,602.88 × 7,025.67
4. Step 4: Simplify right side
   21,065.82x = 222,031,405.93
5. Step 5: Solve for x
   x = 222,031,405.93/21,065.82
6. Step 6: Final answer
   x = 10,539.89