Finding the Fourth Proportional to 12,781.05, 17,652.62 and 8,524.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,781.05 : 17,652.62 = 8,524.72 : x
2. Step 2: Convert to fraction form
   12,781.05/17,652.62 = 8,524.72/x
3. Step 3: Cross multiply
   12,781.05x = 17,652.62 × 8,524.72
4. Step 4: Simplify right side
   12,781.05x = 150,483,642.77
5. Step 5: Solve for x
   x = 150,483,642.77/12,781.05
6. Step 6: Final answer
   x = 11,773.97