Finding the Fourth Proportional to 13,146.02, 18,141.57 and 7,177.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,146.02 : 18,141.57 = 7,177.83 : x
2. Step 2: Convert to fraction form
   13,146.02/18,141.57 = 7,177.83/x
3. Step 3: Cross multiply
   13,146.02x = 18,141.57 × 7,177.83
4. Step 4: Simplify right side
   13,146.02x = 130,217,105.39
5. Step 5: Solve for x
   x = 130,217,105.39/13,146.02
6. Step 6: Final answer
   x = 9,905.44