Finding the Fourth Proportional to 9,923.15, 14,887.49 and 8,091.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,923.15 : 14,887.49 = 8,091.56 : x
2. Step 2: Convert to fraction form
   9,923.15/14,887.49 = 8,091.56/x
3. Step 3: Cross multiply
   9,923.15x = 14,887.49 × 8,091.56
4. Step 4: Simplify right side
   9,923.15x = 120,462,903.69
5. Step 5: Solve for x
   x = 120,462,903.69/9,923.15
6. Step 6: Final answer
   x = 12,139.59