Finding the Fourth Proportional to 9,322.32, 12,863.34 and 5,342.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,322.32 : 12,863.34 = 5,342.88 : x
2. Step 2: Convert to fraction form
   9,322.32/12,863.34 = 5,342.88/x
3. Step 3: Cross multiply
   9,322.32x = 12,863.34 × 5,342.88
4. Step 4: Simplify right side
   9,322.32x = 68,727,282.02
5. Step 5: Solve for x
   x = 68,727,282.02/9,322.32
6. Step 6: Final answer
   x = 7,372.34