Finding the Fourth Proportional to 12,677.86, 19,006.52 and 5,287.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,677.86 : 19,006.52 = 5,287.84 : x
2. Step 2: Convert to fraction form
   12,677.86/19,006.52 = 5,287.84/x
3. Step 3: Cross multiply
   12,677.86x = 19,006.52 × 5,287.84
4. Step 4: Simplify right side
   12,677.86x = 100,503,436.72
5. Step 5: Solve for x
   x = 100,503,436.72/12,677.86
6. Step 6: Final answer
   x = 7,927.48