Finding the Fourth Proportional to 20,498.16, 30,750.47 and 7,174.88

Step by Step Solution

1. Step 1: Write the proportion equation
   20,498.16 : 30,750.47 = 7,174.88 : x
2. Step 2: Convert to fraction form
   20,498.16/30,750.47 = 7,174.88/x
3. Step 3: Cross multiply
   20,498.16x = 30,750.47 × 7,174.88
4. Step 4: Simplify right side
   20,498.16x = 220,630,742.57
5. Step 5: Solve for x
   x = 220,630,742.57/20,498.16
6. Step 6: Final answer
   x = 10,763.44