Finding the Fourth Proportional to 55,196.66, 82,780.13 and 15,206.12

Step by Step Solution

1. Step 1: Write the proportion equation
   55,196.66 : 82,780.13 = 15,206.12 : x
2. Step 2: Convert to fraction form
   55,196.66/82,780.13 = 15,206.12/x
3. Step 3: Cross multiply
   55,196.66x = 82,780.13 × 15,206.12
4. Step 4: Simplify right side
   55,196.66x = 1,258,764,514.37
5. Step 5: Solve for x
   x = 1,258,764,514.37/55,196.66
6. Step 6: Final answer
   x = 22,805.08