Finding the Fourth Proportional to 12,264.30, 18,390.42 and 6,715.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,264.30 : 18,390.42 = 6,715.98 : x
2. Step 2: Convert to fraction form
   12,264.30/18,390.42 = 6,715.98/x
3. Step 3: Cross multiply
   12,264.30x = 18,390.42 × 6,715.98
4. Step 4: Simplify right side
   12,264.30x = 123,509,692.91
5. Step 5: Solve for x
   x = 123,509,692.91/12,264.30
6. Step 6: Final answer
   x = 10,070.67