Finding the Fourth Proportional to 31,119.67, 42,980.97 and 22,659.61

Step by Step Solution

1. Step 1: Write the proportion equation
   31,119.67 : 42,980.97 = 22,659.61 : x
2. Step 2: Convert to fraction form
   31,119.67/42,980.97 = 22,659.61/x
3. Step 3: Cross multiply
   31,119.67x = 42,980.97 × 22,659.61
4. Step 4: Simplify right side
   31,119.67x = 973,932,017.62
5. Step 5: Solve for x
   x = 973,932,017.62/31,119.67
6. Step 6: Final answer
   x = 31,296.35