Finding the Fourth Proportional to 12,591.59, 18,895.95 and 5,196.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,591.59 : 18,895.95 = 5,196.02 : x
2. Step 2: Convert to fraction form
   12,591.59/18,895.95 = 5,196.02/x
3. Step 3: Cross multiply
   12,591.59x = 18,895.95 × 5,196.02
4. Step 4: Simplify right side
   12,591.59x = 98,183,639.64
5. Step 5: Solve for x
   x = 98,183,639.64/12,591.59
6. Step 6: Final answer
   x = 7,797.56