Finding the Fourth Proportional to 12,434.88, 17,146.99 and 9,602.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,434.88 : 17,146.99 = 9,602.72 : x
2. Step 2: Convert to fraction form
   12,434.88/17,146.99 = 9,602.72/x
3. Step 3: Cross multiply
   12,434.88x = 17,146.99 × 9,602.72
4. Step 4: Simplify right side
   12,434.88x = 164,657,610.06
5. Step 5: Solve for x
   x = 164,657,610.06/12,434.88
6. Step 6: Final answer
   x = 13,241.59