Finding the Fourth Proportional to 9,655.68, 14,459.01 and 8,091.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,655.68 : 14,459.01 = 8,091.57 : x
2. Step 2: Convert to fraction form
   9,655.68/14,459.01 = 8,091.57/x
3. Step 3: Cross multiply
   9,655.68x = 14,459.01 × 8,091.57
4. Step 4: Simplify right side
   9,655.68x = 116,996,091.55
5. Step 5: Solve for x
   x = 116,996,091.55/9,655.68
6. Step 6: Final answer
   x = 12,116.82