Finding the Fourth Proportional to 9,665.56, 14,500.91 and 3,091.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.56 : 14,500.91 = 3,091.87 : x
2. Step 2: Convert to fraction form
   9,665.56/14,500.91 = 3,091.87/x
3. Step 3: Cross multiply
   9,665.56x = 14,500.91 × 3,091.87
4. Step 4: Simplify right side
   9,665.56x = 44,834,928.60
5. Step 5: Solve for x
   x = 44,834,928.60/9,665.56
6. Step 6: Final answer
   x = 4,638.63