Finding the Fourth Proportional to 11,648.30, 16,056.50 and 9,756.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,648.30 : 16,056.50 = 9,756.54 : x
2. Step 2: Convert to fraction form
   11,648.30/16,056.50 = 9,756.54/x
3. Step 3: Cross multiply
   11,648.30x = 16,056.50 × 9,756.54
4. Step 4: Simplify right side
   11,648.30x = 156,655,835.73
5. Step 5: Solve for x
   x = 156,655,835.73/11,648.30
6. Step 6: Final answer
   x = 13,448.82