Finding the Fourth Proportional to 23,281.32, 32,122.61 and 13,721.60

Step by Step Solution

1. Step 1: Write the proportion equation
   23,281.32 : 32,122.61 = 13,721.60 : x
2. Step 2: Convert to fraction form
   23,281.32/32,122.61 = 13,721.60/x
3. Step 3: Cross multiply
   23,281.32x = 32,122.61 × 13,721.60
4. Step 4: Simplify right side
   23,281.32x = 440,773,668.53
5. Step 5: Solve for x
   x = 440,773,668.53/23,281.32
6. Step 6: Final answer
   x = 18,932.50