Finding the Fourth Proportional to 12,910.86, 19,362.69 and 4,589.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,910.86 : 19,362.69 = 4,589.82 : x
2. Step 2: Convert to fraction form
   12,910.86/19,362.69 = 4,589.82/x
3. Step 3: Cross multiply
   12,910.86x = 19,362.69 × 4,589.82
4. Step 4: Simplify right side
   12,910.86x = 88,871,261.82
5. Step 5: Solve for x
   x = 88,871,261.82/12,910.86
6. Step 6: Final answer
   x = 6,883.45