Finding the Fourth Proportional to 12,554.58, 17,321.82 and 8,970.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,554.58 : 17,321.82 = 8,970.62 : x
2. Step 2: Convert to fraction form
   12,554.58/17,321.82 = 8,970.62/x
3. Step 3: Cross multiply
   12,554.58x = 17,321.82 × 8,970.62
4. Step 4: Simplify right side
   12,554.58x = 155,387,464.93
5. Step 5: Solve for x
   x = 155,387,464.93/12,554.58
6. Step 6: Final answer
   x = 12,376.95