Finding the Fourth Proportional to 31,393.92, 43,320.72 and 17,962.80

Step by Step Solution

1. Step 1: Write the proportion equation
   31,393.92 : 43,320.72 = 17,962.80 : x
2. Step 2: Convert to fraction form
   31,393.92/43,320.72 = 17,962.80/x
3. Step 3: Cross multiply
   31,393.92x = 43,320.72 × 17,962.80
4. Step 4: Simplify right side
   31,393.92x = 778,161,429.22
5. Step 5: Solve for x
   x = 778,161,429.22/31,393.92
6. Step 6: Final answer
   x = 24,787.01