Finding the Fourth Proportional to 23,818.66, 32,870.76 and 13,208.30

Step by Step Solution

1. Step 1: Write the proportion equation
   23,818.66 : 32,870.76 = 13,208.30 : x
2. Step 2: Convert to fraction form
   23,818.66/32,870.76 = 13,208.30/x
3. Step 3: Cross multiply
   23,818.66x = 32,870.76 × 13,208.30
4. Step 4: Simplify right side
   23,818.66x = 434,166,859.31
5. Step 5: Solve for x
   x = 434,166,859.31/23,818.66
6. Step 6: Final answer
   x = 18,228.01