Finding the Fourth Proportional to 13,132.76, 19,700.25 and 5,636.64

Step by Step Solution

1. Step 1: Write the proportion equation
   13,132.76 : 19,700.25 = 5,636.64 : x
2. Step 2: Convert to fraction form
   13,132.76/19,700.25 = 5,636.64/x
3. Step 3: Cross multiply
   13,132.76x = 19,700.25 × 5,636.64
4. Step 4: Simplify right side
   13,132.76x = 111,043,269.90
5. Step 5: Solve for x
   x = 111,043,269.90/13,132.76
6. Step 6: Final answer
   x = 8,455.44