Finding the Fourth Proportional to 12,827.72, 17,705.21 and 7,524.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,827.72 : 17,705.21 = 7,524.25 : x
2. Step 2: Convert to fraction form
   12,827.72/17,705.21 = 7,524.25/x
3. Step 3: Cross multiply
   12,827.72x = 17,705.21 × 7,524.25
4. Step 4: Simplify right side
   12,827.72x = 133,218,300.20
5. Step 5: Solve for x
   x = 133,218,300.20/12,827.72
6. Step 6: Final answer
   x = 10,385.19