Finding the Fourth Proportional to 12,548.81, 17,310.12 and 7,824.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,548.81 : 17,310.12 = 7,824.89 : x
2. Step 2: Convert to fraction form
   12,548.81/17,310.12 = 7,824.89/x
3. Step 3: Cross multiply
   12,548.81x = 17,310.12 × 7,824.89
4. Step 4: Simplify right side
   12,548.81x = 135,449,784.89
5. Step 5: Solve for x
   x = 135,449,784.89/12,548.81
6. Step 6: Final answer
   x = 10,793.84