Finding the Fourth Proportional to 12,385.84, 18,578.69 and 3,025.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,385.84 : 18,578.69 = 3,025.91 : x
2. Step 2: Convert to fraction form
   12,385.84/18,578.69 = 3,025.91/x
3. Step 3: Cross multiply
   12,385.84x = 18,578.69 × 3,025.91
4. Step 4: Simplify right side
   12,385.84x = 56,217,443.86
5. Step 5: Solve for x
   x = 56,217,443.86/12,385.84
6. Step 6: Final answer
   x = 4,538.85