Finding the Fourth Proportional to 31,215.27, 43,074.86 and 17,784.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,215.27 : 43,074.86 = 17,784.06 : x
2. Step 2: Convert to fraction form
   31,215.27/43,074.86 = 17,784.06/x
3. Step 3: Cross multiply
   31,215.27x = 43,074.86 × 17,784.06
4. Step 4: Simplify right side
   31,215.27x = 766,045,644.28
5. Step 5: Solve for x
   x = 766,045,644.28/31,215.27
6. Step 6: Final answer
   x = 24,540.73