Finding the Fourth Proportional to 9,340.72, 13,996.48 and 7,948.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,340.72 : 13,996.48 = 7,948.36 : x
2. Step 2: Convert to fraction form
   9,340.72/13,996.48 = 7,948.36/x
3. Step 3: Cross multiply
   9,340.72x = 13,996.48 × 7,948.36
4. Step 4: Simplify right side
   9,340.72x = 111,249,061.77
5. Step 5: Solve for x
   x = 111,249,061.77/9,340.72
6. Step 6: Final answer
   x = 11,910.12