Finding the Fourth Proportional to 13,761.32, 18,990.72 and 7,473.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,761.32 : 18,990.72 = 7,473.69 : x
2. Step 2: Convert to fraction form
   13,761.32/18,990.72 = 7,473.69/x
3. Step 3: Cross multiply
   13,761.32x = 18,990.72 × 7,473.69
4. Step 4: Simplify right side
   13,761.32x = 141,930,754.16
5. Step 5: Solve for x
   x = 141,930,754.16/13,761.32
6. Step 6: Final answer
   x = 10,313.75