Finding the Fourth Proportional to 12,656.50, 17,465.79 and 7,354.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,656.50 : 17,465.79 = 7,354.30 : x
2. Step 2: Convert to fraction form
   12,656.50/17,465.79 = 7,354.30/x
3. Step 3: Cross multiply
   12,656.50x = 17,465.79 × 7,354.30
4. Step 4: Simplify right side
   12,656.50x = 128,448,659.40
5. Step 5: Solve for x
   x = 128,448,659.40/12,656.50
6. Step 6: Final answer
   x = 10,148.83