Finding the Fourth Proportional to 20,496.90, 30,748.59 and 7,173.62

Step by Step Solution

1. Step 1: Write the proportion equation
   20,496.90 : 30,748.59 = 7,173.62 : x
2. Step 2: Convert to fraction form
   20,496.90/30,748.59 = 7,173.62/x
3. Step 3: Cross multiply
   20,496.90x = 30,748.59 × 7,173.62
4. Step 4: Simplify right side
   20,496.90x = 220,578,700.20
5. Step 5: Solve for x
   x = 220,578,700.20/20,496.90
6. Step 6: Final answer
   x = 10,761.56