Finding the Fourth Proportional to 12,233.60, 18,357.33 and 5,212.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,233.60 : 18,357.33 = 5,212.88 : x
2. Step 2: Convert to fraction form
   12,233.60/18,357.33 = 5,212.88/x
3. Step 3: Cross multiply
   12,233.60x = 18,357.33 × 5,212.88
4. Step 4: Simplify right side
   12,233.60x = 95,694,440.56
5. Step 5: Solve for x
   x = 95,694,440.56/12,233.60
6. Step 6: Final answer
   x = 7,822.26