Finding the Fourth Proportional to 13,761.24, 18,990.50 and 7,473.57

Step by Step Solution

1. Step 1: Write the proportion equation
   13,761.24 : 18,990.50 = 7,473.57 : x
2. Step 2: Convert to fraction form
   13,761.24/18,990.50 = 7,473.57/x
3. Step 3: Cross multiply
   13,761.24x = 18,990.50 × 7,473.57
4. Step 4: Simplify right side
   13,761.24x = 141,926,793.72
5. Step 5: Solve for x
   x = 141,926,793.72/13,761.24
6. Step 6: Final answer
   x = 10,313.52