Finding the Fourth Proportional to 11,146.73, 15,386.49 and 7,607.43

Step by Step Solution

1. Step 1: Write the proportion equation
   11,146.73 : 15,386.49 = 7,607.43 : x
2. Step 2: Convert to fraction form
   11,146.73/15,386.49 = 7,607.43/x
3. Step 3: Cross multiply
   11,146.73x = 15,386.49 × 7,607.43
4. Step 4: Simplify right side
   11,146.73x = 117,051,645.62
5. Step 5: Solve for x
   x = 117,051,645.62/11,146.73
6. Step 6: Final answer
   x = 10,500.99