Finding the Fourth Proportional to 23,890.92, 32,970.30 and 13,281

Step by Step Solution

1. Step 1: Write the proportion equation
   23,890.92 : 32,970.30 = 13,281 : x
2. Step 2: Convert to fraction form
   23,890.92/32,970.30 = 13,281/x
3. Step 3: Cross multiply
   23,890.92x = 32,970.30 × 13,281
4. Step 4: Simplify right side
   23,890.92x = 437,878,554.30
5. Step 5: Solve for x
   x = 437,878,554.30/23,890.92
6. Step 6: Final answer
   x = 18,328.24