Finding the Fourth Proportional to 13,443.55, 18,552.06 and 7,475.77

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443.55 : 18,552.06 = 7,475.77 : x
2. Step 2: Convert to fraction form
   13,443.55/18,552.06 = 7,475.77/x
3. Step 3: Cross multiply
   13,443.55x = 18,552.06 × 7,475.77
4. Step 4: Simplify right side
   13,443.55x = 138,690,933.59
5. Step 5: Solve for x
   x = 138,690,933.59/13,443.55
6. Step 6: Final answer
   x = 10,316.54