Finding the Fourth Proportional to 12,323.61, 17,007.47 and 7,018.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,323.61 : 17,007.47 = 7,018.77 : x
2. Step 2: Convert to fraction form
   12,323.61/17,007.47 = 7,018.77/x
3. Step 3: Cross multiply
   12,323.61x = 17,007.47 × 7,018.77
4. Step 4: Simplify right side
   12,323.61x = 119,371,479.55
5. Step 5: Solve for x
   x = 119,371,479.55/12,323.61
6. Step 6: Final answer
   x = 9,686.41