Finding the Fourth Proportional to 23,595.58, 32,561.83 and 12,985.21

Step by Step Solution

1. Step 1: Write the proportion equation
   23,595.58 : 32,561.83 = 12,985.21 : x
2. Step 2: Convert to fraction form
   23,595.58/32,561.83 = 12,985.21/x
3. Step 3: Cross multiply
   23,595.58x = 32,561.83 × 12,985.21
4. Step 4: Simplify right side
   23,595.58x = 422,822,200.53
5. Step 5: Solve for x
   x = 422,822,200.53/23,595.58
6. Step 6: Final answer
   x = 17,919.55