Finding the Fourth Proportional to 23,898.56, 32,978.56 and 13,287.84

Step by Step Solution

1. Step 1: Write the proportion equation
   23,898.56 : 32,978.56 = 13,287.84 : x
2. Step 2: Convert to fraction form
   23,898.56/32,978.56 = 13,287.84/x
3. Step 3: Cross multiply
   23,898.56x = 32,978.56 × 13,287.84
4. Step 4: Simplify right side
   23,898.56x = 438,213,828.71
5. Step 5: Solve for x
   x = 438,213,828.71/23,898.56
6. Step 6: Final answer
   x = 18,336.41