Finding the Fourth Proportional to 13,145.04, 18,141 and 7,555.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,145.04 : 18,141 = 7,555.92 : x
2. Step 2: Convert to fraction form
   13,145.04/18,141 = 7,555.92/x
3. Step 3: Cross multiply
   13,145.04x = 18,141 × 7,555.92
4. Step 4: Simplify right side
   13,145.04x = 137,071,944.72
5. Step 5: Solve for x
   x = 137,071,944.72/13,145.04
6. Step 6: Final answer
   x = 10,427.66