Finding the Fourth Proportional to 8,123.21, 12,184.02 and 5,507.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.21 : 12,184.02 = 5,507.52 : x
2. Step 2: Convert to fraction form
   8,123.21/12,184.02 = 5,507.52/x
3. Step 3: Cross multiply
   8,123.21x = 12,184.02 × 5,507.52
4. Step 4: Simplify right side
   8,123.21x = 67,103,733.83
5. Step 5: Solve for x
   x = 67,103,733.83/8,123.21
6. Step 6: Final answer
   x = 8,260.74