Finding the Fourth Proportional to 31,256.42, 43,135.05 and 17,829.86

Step by Step Solution

1. Step 1: Write the proportion equation
   31,256.42 : 43,135.05 = 17,829.86 : x
2. Step 2: Convert to fraction form
   31,256.42/43,135.05 = 17,829.86/x
3. Step 3: Cross multiply
   31,256.42x = 43,135.05 × 17,829.86
4. Step 4: Simplify right side
   31,256.42x = 769,091,902.59
5. Step 5: Solve for x
   x = 769,091,902.59/31,256.42
6. Step 6: Final answer
   x = 24,605.89