Finding the Fourth Proportional to 12,537.76, 17,308.56 and 8,828.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,537.76 : 17,308.56 = 8,828.32 : x
2. Step 2: Convert to fraction form
   12,537.76/17,308.56 = 8,828.32/x
3. Step 3: Cross multiply
   12,537.76x = 17,308.56 × 8,828.32
4. Step 4: Simplify right side
   12,537.76x = 152,805,506.42
5. Step 5: Solve for x
   x = 152,805,506.42/12,537.76
6. Step 6: Final answer
   x = 12,187.62