Finding the Fourth Proportional to 12,436.86, 17,157.63 and 8,237.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,436.86 : 17,157.63 = 8,237.82 : x
2. Step 2: Convert to fraction form
   12,436.86/17,157.63 = 8,237.82/x
3. Step 3: Cross multiply
   12,436.86x = 17,157.63 × 8,237.82
4. Step 4: Simplify right side
   12,436.86x = 141,341,467.57
5. Step 5: Solve for x
   x = 141,341,467.57/12,436.86
6. Step 6: Final answer
   x = 11,364.72