Finding the Fourth Proportional to 12,755.86, 19,134.15 and 3,521.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,755.86 : 19,134.15 = 3,521.86 : x
2. Step 2: Convert to fraction form
   12,755.86/19,134.15 = 3,521.86/x
3. Step 3: Cross multiply
   12,755.86x = 19,134.15 × 3,521.86
4. Step 4: Simplify right side
   12,755.86x = 67,387,797.52
5. Step 5: Solve for x
   x = 67,387,797.52/12,755.86
6. Step 6: Final answer
   x = 5,282.89