Finding the Fourth Proportional to 12,243.30, 18,384.15 and 7,059.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,243.30 : 18,384.15 = 7,059.30 : x
2. Step 2: Convert to fraction form
   12,243.30/18,384.15 = 7,059.30/x
3. Step 3: Cross multiply
   12,243.30x = 18,384.15 × 7,059.30
4. Step 4: Simplify right side
   12,243.30x = 129,779,230.10
5. Step 5: Solve for x
   x = 129,779,230.10/12,243.30
6. Step 6: Final answer
   x = 10,600.02