Finding the Fourth Proportional to 21,065.33, 31,602.13 and 7,025.17

Step by Step Solution

1. Step 1: Write the proportion equation
   21,065.33 : 31,602.13 = 7,025.17 : x
2. Step 2: Convert to fraction form
   21,065.33/31,602.13 = 7,025.17/x
3. Step 3: Cross multiply
   21,065.33x = 31,602.13 × 7,025.17
4. Step 4: Simplify right side
   21,065.33x = 222,010,177.60
5. Step 5: Solve for x
   x = 222,010,177.60/21,065.33
6. Step 6: Final answer
   x = 10,539.13