Finding the Fourth Proportional to 8,784.95, 12,123.19 and 5,008.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,784.95 : 12,123.19 = 5,008.28 : x
2. Step 2: Convert to fraction form
   8,784.95/12,123.19 = 5,008.28/x
3. Step 3: Cross multiply
   8,784.95x = 12,123.19 × 5,008.28
4. Step 4: Simplify right side
   8,784.95x = 60,716,256.88
5. Step 5: Solve for x
   x = 60,716,256.88/8,784.95
6. Step 6: Final answer
   x = 6,911.39