Finding the Fourth Proportional to 12,359.81, 17,056.55 and 7,054.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,359.81 : 17,056.55 = 7,054.52 : x
2. Step 2: Convert to fraction form
   12,359.81/17,056.55 = 7,054.52/x
3. Step 3: Cross multiply
   12,359.81x = 17,056.55 × 7,054.52
4. Step 4: Simplify right side
   12,359.81x = 120,325,705.46
5. Step 5: Solve for x
   x = 120,325,705.46/12,359.81
6. Step 6: Final answer
   x = 9,735.24