Finding the Fourth Proportional to 31,106.60, 42,930.80 and 17,682.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,106.60 : 42,930.80 = 17,682.04 : x
2. Step 2: Convert to fraction form
   31,106.60/42,930.80 = 17,682.04/x
3. Step 3: Cross multiply
   31,106.60x = 42,930.80 × 17,682.04
4. Step 4: Simplify right side
   31,106.60x = 759,104,122.83
5. Step 5: Solve for x
   x = 759,104,122.83/31,106.60
6. Step 6: Final answer
   x = 24,403.31