Finding the Fourth Proportional to 12,130.72, 18,196.18 and 3,366.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,130.72 : 18,196.18 = 3,366.32 : x
2. Step 2: Convert to fraction form
   12,130.72/18,196.18 = 3,366.32/x
3. Step 3: Cross multiply
   12,130.72x = 18,196.18 × 3,366.32
4. Step 4: Simplify right side
   12,130.72x = 61,254,065.26
5. Step 5: Solve for x
   x = 61,254,065.26/12,130.72
6. Step 6: Final answer
   x = 5,049.50