Finding the Fourth Proportional to 9,388.46, 12,955.20 and 5,610.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,388.46 : 12,955.20 = 5,610.88 : x
2. Step 2: Convert to fraction form
   9,388.46/12,955.20 = 5,610.88/x
3. Step 3: Cross multiply
   9,388.46x = 12,955.20 × 5,610.88
4. Step 4: Simplify right side
   9,388.46x = 72,690,072.58
5. Step 5: Solve for x
   x = 72,690,072.58/9,388.46
6. Step 6: Final answer
   x = 7,742.49