Finding the Fourth Proportional to 8,786.23, 12,123.80 and 5,248.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,786.23 : 12,123.80 = 5,248.69 : x
2. Step 2: Convert to fraction form
   8,786.23/12,123.80 = 5,248.69/x
3. Step 3: Cross multiply
   8,786.23x = 12,123.80 × 5,248.69
4. Step 4: Simplify right side
   8,786.23x = 63,634,067.82
5. Step 5: Solve for x
   x = 63,634,067.82/8,786.23
6. Step 6: Final answer
   x = 7,242.48