Finding the Fourth Proportional to 12,592.55, 17,378.31 and 7,286.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,592.55 : 17,378.31 = 7,286.34 : x
2. Step 2: Convert to fraction form
   12,592.55/17,378.31 = 7,286.34/x
3. Step 3: Cross multiply
   12,592.55x = 17,378.31 × 7,286.34
4. Step 4: Simplify right side
   12,592.55x = 126,624,275.29
5. Step 5: Solve for x
   x = 126,624,275.29/12,592.55
6. Step 6: Final answer
   x = 10,055.49