Finding the Fourth Proportional to 12,974.48, 17,904.92 and 7,385.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,974.48 : 17,904.92 = 7,385.52 : x
2. Step 2: Convert to fraction form
   12,974.48/17,904.92 = 7,385.52/x
3. Step 3: Cross multiply
   12,974.48x = 17,904.92 × 7,385.52
4. Step 4: Simplify right side
   12,974.48x = 132,237,144.76
5. Step 5: Solve for x
   x = 132,237,144.76/12,974.48
6. Step 6: Final answer
   x = 10,192.10