Finding the Fourth Proportional to 23,720.50, 32,733.01 and 13,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,720.50 : 32,733.01 = 13,109.50 : x
2. Step 2: Convert to fraction form
   23,720.50/32,733.01 = 13,109.50/x
3. Step 3: Cross multiply
   23,720.50x = 32,733.01 × 13,109.50
4. Step 4: Simplify right side
   23,720.50x = 429,113,394.60
5. Step 5: Solve for x
   x = 429,113,394.60/23,720.50
6. Step 6: Final answer
   x = 18,090.40