Finding the Fourth Proportional to 12,979.37, 17,910.24 and 7,602.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,979.37 : 17,910.24 = 7,602.39 : x
2. Step 2: Convert to fraction form
   12,979.37/17,910.24 = 7,602.39/x
3. Step 3: Cross multiply
   12,979.37x = 17,910.24 × 7,602.39
4. Step 4: Simplify right side
   12,979.37x = 136,160,629.47
5. Step 5: Solve for x
   x = 136,160,629.47/12,979.37
6. Step 6: Final answer
   x = 10,490.55