Finding the Fourth Proportional to 9,216.42, 12,714.82 and 5,438.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,216.42 : 12,714.82 = 5,438.08 : x
2. Step 2: Convert to fraction form
   9,216.42/12,714.82 = 5,438.08/x
3. Step 3: Cross multiply
   9,216.42x = 12,714.82 × 5,438.08
4. Step 4: Simplify right side
   9,216.42x = 69,144,208.35
5. Step 5: Solve for x
   x = 69,144,208.35/9,216.42
6. Step 6: Final answer
   x = 7,502.28