Finding the Fourth Proportional to 12,061.48, 18,099 and 5,046.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,061.48 : 18,099 = 5,046.64 : x
2. Step 2: Convert to fraction form
   12,061.48/18,099 = 5,046.64/x
3. Step 3: Cross multiply
   12,061.48x = 18,099 × 5,046.64
4. Step 4: Simplify right side
   12,061.48x = 91,339,137.36
5. Step 5: Solve for x
   x = 91,339,137.36/12,061.48
6. Step 6: Final answer
   x = 7,572.80