Finding the Fourth Proportional to 31,240.35, 43,112.43 and 17,812.89

Step by Step Solution

1. Step 1: Write the proportion equation
   31,240.35 : 43,112.43 = 17,812.89 : x
2. Step 2: Convert to fraction form
   31,240.35/43,112.43 = 17,812.89/x
3. Step 3: Cross multiply
   31,240.35x = 43,112.43 × 17,812.89
4. Step 4: Simplify right side
   31,240.35x = 767,956,973.22
5. Step 5: Solve for x
   x = 767,956,973.22/31,240.35
6. Step 6: Final answer
   x = 24,582.21