Finding the Fourth Proportional to 16,645.99, 24,956.69 and 7,870.66

Step by Step Solution

1. Step 1: Write the proportion equation
   16,645.99 : 24,956.69 = 7,870.66 : x
2. Step 2: Convert to fraction form
   16,645.99/24,956.69 = 7,870.66/x
3. Step 3: Cross multiply
   16,645.99x = 24,956.69 × 7,870.66
4. Step 4: Simplify right side
   16,645.99x = 196,425,621.72
5. Step 5: Solve for x
   x = 196,425,621.72/16,645.99
6. Step 6: Final answer
   x = 11,800.18