Finding the Fourth Proportional to 11,748.84, 16,213.12 and 7,557.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,748.84 : 16,213.12 = 7,557.09 : x
2. Step 2: Convert to fraction form
   11,748.84/16,213.12 = 7,557.09/x
3. Step 3: Cross multiply
   11,748.84x = 16,213.12 × 7,557.09
4. Step 4: Simplify right side
   11,748.84x = 122,524,007.02
5. Step 5: Solve for x
   x = 122,524,007.02/11,748.84
6. Step 6: Final answer
   x = 10,428.60