Finding the Fourth Proportional to 12,851.21, 17,736.72 and 7,545.99

Step by Step Solution

1. Step 1: Write the proportion equation
   12,851.21 : 17,736.72 = 7,545.99 : x
2. Step 2: Convert to fraction form
   12,851.21/17,736.72 = 7,545.99/x
3. Step 3: Cross multiply
   12,851.21x = 17,736.72 × 7,545.99
4. Step 4: Simplify right side
   12,851.21x = 133,841,042.76
5. Step 5: Solve for x
   x = 133,841,042.76/12,851.21
6. Step 6: Final answer
   x = 10,414.67