Finding the Fourth Proportional to 21,080.22, 31,624.88 and 7,041.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,080.22 : 31,624.88 = 7,041.50 : x
2. Step 2: Convert to fraction form
   21,080.22/31,624.88 = 7,041.50/x
3. Step 3: Cross multiply
   21,080.22x = 31,624.88 × 7,041.50
4. Step 4: Simplify right side
   21,080.22x = 222,686,557.39
5. Step 5: Solve for x
   x = 222,686,557.39/21,080.22
6. Step 6: Final answer
   x = 10,563.77