Finding the Fourth Proportional to 11,707.62, 16,145.73 and 7,672.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,707.62 : 16,145.73 = 7,672.98 : x
2. Step 2: Convert to fraction form
   11,707.62/16,145.73 = 7,672.98/x
3. Step 3: Cross multiply
   11,707.62x = 16,145.73 × 7,672.98
4. Step 4: Simplify right side
   11,707.62x = 123,885,892.15
5. Step 5: Solve for x
   x = 123,885,892.15/11,707.62
6. Step 6: Final answer
   x = 10,581.64