Finding the Fourth Proportional to 11,123.91, 15,344.33 and 7,347.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,123.91 : 15,344.33 = 7,347.09 : x
2. Step 2: Convert to fraction form
   11,123.91/15,344.33 = 7,347.09/x
3. Step 3: Cross multiply
   11,123.91x = 15,344.33 × 7,347.09
4. Step 4: Simplify right side
   11,123.91x = 112,736,136.76
5. Step 5: Solve for x
   x = 112,736,136.76/11,123.91
6. Step 6: Final answer
   x = 10,134.58