Finding the Fourth Proportional to 10,748.57, 16,128.32 and 4,904.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,748.57 : 16,128.32 = 4,904.42 : x
2. Step 2: Convert to fraction form
   10,748.57/16,128.32 = 4,904.42/x
3. Step 3: Cross multiply
   10,748.57x = 16,128.32 × 4,904.42
4. Step 4: Simplify right side
   10,748.57x = 79,099,950.01
5. Step 5: Solve for x
   x = 79,099,950.01/10,748.57
6. Step 6: Final answer
   x = 7,359.12