Finding the Fourth Proportional to 31,441.05, 43,389.77 and 18,009.47

Step by Step Solution

1. Step 1: Write the proportion equation
   31,441.05 : 43,389.77 = 18,009.47 : x
2. Step 2: Convert to fraction form
   31,441.05/43,389.77 = 18,009.47/x
3. Step 3: Cross multiply
   31,441.05x = 43,389.77 × 18,009.47
4. Step 4: Simplify right side
   31,441.05x = 781,426,779.55
5. Step 5: Solve for x
   x = 781,426,779.55/31,441.05
6. Step 6: Final answer
   x = 24,853.71