Finding the Fourth Proportional to 31,499.47, 43,475.57 and 18,079.80

Step by Step Solution

1. Step 1: Write the proportion equation
   31,499.47 : 43,475.57 = 18,079.80 : x
2. Step 2: Convert to fraction form
   31,499.47/43,475.57 = 18,079.80/x
3. Step 3: Cross multiply
   31,499.47x = 43,475.57 × 18,079.80
4. Step 4: Simplify right side
   31,499.47x = 786,029,610.49
5. Step 5: Solve for x
   x = 786,029,610.49/31,499.47
6. Step 6: Final answer
   x = 24,953.74