Finding the Fourth Proportional to 23,389.76, 32,281.79 and 13,316.81

Step by Step Solution

1. Step 1: Write the proportion equation
   23,389.76 : 32,281.79 = 13,316.81 : x
2. Step 2: Convert to fraction form
   23,389.76/32,281.79 = 13,316.81/x
3. Step 3: Cross multiply
   23,389.76x = 32,281.79 × 13,316.81
4. Step 4: Simplify right side
   23,389.76x = 429,890,310.80
5. Step 5: Solve for x
   x = 429,890,310.80/23,389.76
6. Step 6: Final answer
   x = 18,379.42