Finding the Fourth Proportional to 8,962.63, 12,369.43 and 5,185.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,962.63 : 12,369.43 = 5,185.76 : x
2. Step 2: Convert to fraction form
   8,962.63/12,369.43 = 5,185.76/x
3. Step 3: Cross multiply
   8,962.63x = 12,369.43 × 5,185.76
4. Step 4: Simplify right side
   8,962.63x = 64,144,839.95
5. Step 5: Solve for x
   x = 64,144,839.95/8,962.63
6. Step 6: Final answer
   x = 7,156.92