Finding the Fourth Proportional to 9,045.60, 12,456.78 and 7,361.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,045.60 : 12,456.78 = 7,361.58 : x
2. Step 2: Convert to fraction form
   9,045.60/12,456.78 = 7,361.58/x
3. Step 3: Cross multiply
   9,045.60x = 12,456.78 × 7,361.58
4. Step 4: Simplify right side
   9,045.60x = 91,701,582.51
5. Step 5: Solve for x
   x = 91,701,582.51/9,045.60
6. Step 6: Final answer
   x = 10,137.70