Finding the Fourth Proportional to 13,662.54, 20,498.79 and 5,767.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,662.54 : 20,498.79 = 5,767.02 : x
2. Step 2: Convert to fraction form
   13,662.54/20,498.79 = 5,767.02/x
3. Step 3: Cross multiply
   13,662.54x = 20,498.79 × 5,767.02
4. Step 4: Simplify right side
   13,662.54x = 118,216,931.91
5. Step 5: Solve for x
   x = 118,216,931.91/13,662.54
6. Step 6: Final answer
   x = 8,652.63