Finding the Fourth Proportional to 12,607.34, 17,385.23 and 8,356.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,607.34 : 17,385.23 = 8,356.92 : x
2. Step 2: Convert to fraction form
   12,607.34/17,385.23 = 8,356.92/x
3. Step 3: Cross multiply
   12,607.34x = 17,385.23 × 8,356.92
4. Step 4: Simplify right side
   12,607.34x = 145,286,976.29
5. Step 5: Solve for x
   x = 145,286,976.29/12,607.34
6. Step 6: Final answer
   x = 11,524.00