Finding the Fourth Proportional to 11,123.55, 16,679.34 and 3,725.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11,123.55 : 16,679.34 = 3,725.55 : x
2. Step 2: Convert to fraction form
   11,123.55/16,679.34 = 3,725.55/x
3. Step 3: Cross multiply
   11,123.55x = 16,679.34 × 3,725.55
4. Step 4: Simplify right side
   11,123.55x = 62,139,715.14
5. Step 5: Solve for x
   x = 62,139,715.14/11,123.55
6. Step 6: Final answer
   x = 5,586.32