Finding the Fourth Proportional to 12,358.43, 17,055.86 and 7,054.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,358.43 : 17,055.86 = 7,054.05 : x
2. Step 2: Convert to fraction form
   12,358.43/17,055.86 = 7,054.05/x
3. Step 3: Cross multiply
   12,358.43x = 17,055.86 × 7,054.05
4. Step 4: Simplify right side
   12,358.43x = 120,312,889.23
5. Step 5: Solve for x
   x = 120,312,889.23/12,358.43
6. Step 6: Final answer
   x = 9,735.29