Finding the Fourth Proportional to 12,358.54, 17,056.01 and 7,054.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,358.54 : 17,056.01 = 7,054.15 : x
2. Step 2: Convert to fraction form
   12,358.54/17,056.01 = 7,054.15/x
3. Step 3: Cross multiply
   12,358.54x = 17,056.01 × 7,054.15
4. Step 4: Simplify right side
   12,358.54x = 120,315,652.94
5. Step 5: Solve for x
   x = 120,315,652.94/12,358.54
6. Step 6: Final answer
   x = 9,735.43