Finding the Fourth Proportional to 12,645.79, 17,448.38 and 7,337.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,645.79 : 17,448.38 = 7,337.52 : x
2. Step 2: Convert to fraction form
   12,645.79/17,448.38 = 7,337.52/x
3. Step 3: Cross multiply
   12,645.79x = 17,448.38 × 7,337.52
4. Step 4: Simplify right side
   12,645.79x = 128,027,828.05
5. Step 5: Solve for x
   x = 128,027,828.05/12,645.79
6. Step 6: Final answer
   x = 10,124.15