Finding the Fourth Proportional to 21,081.50, 31,627.43 and 7,043.02

Step by Step Solution

1. Step 1: Write the proportion equation
   21,081.50 : 31,627.43 = 7,043.02 : x
2. Step 2: Convert to fraction form
   21,081.50/31,627.43 = 7,043.02/x
3. Step 3: Cross multiply
   21,081.50x = 31,627.43 × 7,043.02
4. Step 4: Simplify right side
   21,081.50x = 222,752,534.17
5. Step 5: Solve for x
   x = 222,752,534.17/21,081.50
6. Step 6: Final answer
   x = 10,566.26