Finding the Fourth Proportional to 12,492.84, 17,241.12 and 7,458.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,492.84 : 17,241.12 = 7,458.60 : x
2. Step 2: Convert to fraction form
   12,492.84/17,241.12 = 7,458.60/x
3. Step 3: Cross multiply
   12,492.84x = 17,241.12 × 7,458.60
4. Step 4: Simplify right side
   12,492.84x = 128,594,617.63
5. Step 5: Solve for x
   x = 128,594,617.63/12,492.84
6. Step 6: Final answer
   x = 10,293.47