Finding the Fourth Proportional to 12,636.34, 17,437.98 and 7,047.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,636.34 : 17,437.98 = 7,047.34 : x
2. Step 2: Convert to fraction form
   12,636.34/17,437.98 = 7,047.34/x
3. Step 3: Cross multiply
   12,636.34x = 17,437.98 × 7,047.34
4. Step 4: Simplify right side
   12,636.34x = 122,891,373.97
5. Step 5: Solve for x
   x = 122,891,373.97/12,636.34
6. Step 6: Final answer
   x = 9,725.23