Finding the Fourth Proportional to 12,550.83, 18,826.15 and 3,190.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,550.83 : 18,826.15 = 3,190.88 : x
2. Step 2: Convert to fraction form
   12,550.83/18,826.15 = 3,190.88/x
3. Step 3: Cross multiply
   12,550.83x = 18,826.15 × 3,190.88
4. Step 4: Simplify right side
   12,550.83x = 60,071,915.71
5. Step 5: Solve for x
   x = 60,071,915.71/12,550.83
6. Step 6: Final answer
   x = 4,786.29