Finding the Fourth Proportional to 9,078.33, 12,530.70 and 5,493.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,078.33 : 12,530.70 = 5,493.30 : x
2. Step 2: Convert to fraction form
   9,078.33/12,530.70 = 5,493.30/x
3. Step 3: Cross multiply
   9,078.33x = 12,530.70 × 5,493.30
4. Step 4: Simplify right side
   9,078.33x = 68,834,894.31
5. Step 5: Solve for x
   x = 68,834,894.31/9,078.33
6. Step 6: Final answer
   x = 7,582.33