Finding the Fourth Proportional to 12,792.86, 17,654.06 and 7,486.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,792.86 : 17,654.06 = 7,486.64 : x
2. Step 2: Convert to fraction form
   12,792.86/17,654.06 = 7,486.64/x
3. Step 3: Cross multiply
   12,792.86x = 17,654.06 × 7,486.64
4. Step 4: Simplify right side
   12,792.86x = 132,169,591.76
5. Step 5: Solve for x
   x = 132,169,591.76/12,792.86
6. Step 6: Final answer
   x = 10,331.51