Finding the Fourth Proportional to 11,123.84, 16,668.96 and 7,412.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,123.84 : 16,668.96 = 7,412.96 : x
2. Step 2: Convert to fraction form
   11,123.84/16,668.96 = 7,412.96/x
3. Step 3: Cross multiply
   11,123.84x = 16,668.96 × 7,412.96
4. Step 4: Simplify right side
   11,123.84x = 123,566,333.72
5. Step 5: Solve for x
   x = 123,566,333.72/11,123.84
6. Step 6: Final answer
   x = 11,108.24