Finding the Fourth Proportional to 20,180.68, 30,263.34 and 9,229

Step by Step Solution

1. Step 1: Write the proportion equation
   20,180.68 : 30,263.34 = 9,229 : x
2. Step 2: Convert to fraction form
   20,180.68/30,263.34 = 9,229/x
3. Step 3: Cross multiply
   20,180.68x = 30,263.34 × 9,229
4. Step 4: Simplify right side
   20,180.68x = 279,300,364.86
5. Step 5: Solve for x
   x = 279,300,364.86/20,180.68
6. Step 6: Final answer
   x = 13,839.99