Finding the Fourth Proportional to 9,156.69, 12,636.20 and 4,964.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,156.69 : 12,636.20 = 4,964.94 : x
2. Step 2: Convert to fraction form
   9,156.69/12,636.20 = 4,964.94/x
3. Step 3: Cross multiply
   9,156.69x = 12,636.20 × 4,964.94
4. Step 4: Simplify right side
   9,156.69x = 62,737,950.00
5. Step 5: Solve for x
   x = 62,737,950.00/9,156.69
6. Step 6: Final answer
   x = 6,851.60