Finding the Fourth Proportional to 21,088.17, 31,636.58 and 7,046.55

Step by Step Solution

1. Step 1: Write the proportion equation
   21,088.17 : 31,636.58 = 7,046.55 : x
2. Step 2: Convert to fraction form
   21,088.17/31,636.58 = 7,046.55/x
3. Step 3: Cross multiply
   21,088.17x = 31,636.58 × 7,046.55
4. Step 4: Simplify right side
   21,088.17x = 222,928,707.57
5. Step 5: Solve for x
   x = 222,928,707.57/21,088.17
6. Step 6: Final answer
   x = 10,571.27