Finding the Fourth Proportional to 11,147.82, 16,713.09 and 4,987.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,147.82 : 16,713.09 = 4,987.50 : x
2. Step 2: Convert to fraction form
   11,147.82/16,713.09 = 4,987.50/x
3. Step 3: Cross multiply
   11,147.82x = 16,713.09 × 4,987.50
4. Step 4: Simplify right side
   11,147.82x = 83,356,536.38
5. Step 5: Solve for x
   x = 83,356,536.38/11,147.82
6. Step 6: Final answer
   x = 7,477.38