Finding the Fourth Proportional to 31,501.47, 43,478.33 and 18,081.80

Step by Step Solution

1. Step 1: Write the proportion equation
   31,501.47 : 43,478.33 = 18,081.80 : x
2. Step 2: Convert to fraction form
   31,501.47/43,478.33 = 18,081.80/x
3. Step 3: Cross multiply
   31,501.47x = 43,478.33 × 18,081.80
4. Step 4: Simplify right side
   31,501.47x = 786,166,159.59
5. Step 5: Solve for x
   x = 786,166,159.59/31,501.47
6. Step 6: Final answer
   x = 24,956.49