Finding the Fourth Proportional to 12,071.42, 16,658.55 and 7,355.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,071.42 : 16,658.55 = 7,355.69 : x
2. Step 2: Convert to fraction form
   12,071.42/16,658.55 = 7,355.69/x
3. Step 3: Cross multiply
   12,071.42x = 16,658.55 × 7,355.69
4. Step 4: Simplify right side
   12,071.42x = 122,535,046.36
5. Step 5: Solve for x
   x = 122,535,046.36/12,071.42
6. Step 6: Final answer
   x = 10,150.84