Finding the Fourth Proportional to 9,945.30, 13,712.37 and 7,291.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.30 : 13,712.37 = 7,291.62 : x
2. Step 2: Convert to fraction form
   9,945.30/13,712.37 = 7,291.62/x
3. Step 3: Cross multiply
   9,945.30x = 13,712.37 × 7,291.62
4. Step 4: Simplify right side
   9,945.30x = 99,985,391.34
5. Step 5: Solve for x
   x = 99,985,391.34/9,945.30
6. Step 6: Final answer
   x = 10,053.53