Finding the Fourth Proportional to 12,242.52, 16,886.76 and 8,412.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,242.52 : 16,886.76 = 8,412.32 : x
2. Step 2: Convert to fraction form
   12,242.52/16,886.76 = 8,412.32/x
3. Step 3: Cross multiply
   12,242.52x = 16,886.76 × 8,412.32
4. Step 4: Simplify right side
   12,242.52x = 142,056,828.88
5. Step 5: Solve for x
   x = 142,056,828.88/12,242.52
6. Step 6: Final answer
   x = 11,603.56