Finding the Fourth Proportional to 12,883.83, 19,300.58 and 8,880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,883.83 : 19,300.58 = 8,880.50 : x
2. Step 2: Convert to fraction form
   12,883.83/19,300.58 = 8,880.50/x
3. Step 3: Cross multiply
   12,883.83x = 19,300.58 × 8,880.50
4. Step 4: Simplify right side
   12,883.83x = 171,398,800.69
5. Step 5: Solve for x
   x = 171,398,800.69/12,883.83
6. Step 6: Final answer
   x = 13,303.40