Finding the Fourth Proportional to 12,148.84, 18,209.10 and 5,575.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,148.84 : 18,209.10 = 5,575.72 : x
2. Step 2: Convert to fraction form
   12,148.84/18,209.10 = 5,575.72/x
3. Step 3: Cross multiply
   12,148.84x = 18,209.10 × 5,575.72
4. Step 4: Simplify right side
   12,148.84x = 101,528,843.05
5. Step 5: Solve for x
   x = 101,528,843.05/12,148.84
6. Step 6: Final answer
   x = 8,357.08