Finding the Fourth Proportional to 12,659.98, 17,470.56 and 7,354.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,659.98 : 17,470.56 = 7,354.84 : x
2. Step 2: Convert to fraction form
   12,659.98/17,470.56 = 7,354.84/x
3. Step 3: Cross multiply
   12,659.98x = 17,470.56 × 7,354.84
4. Step 4: Simplify right side
   12,659.98x = 128,493,173.51
5. Step 5: Solve for x
   x = 128,493,173.51/12,659.98
6. Step 6: Final answer
   x = 10,149.56