Finding the Fourth Proportional to 31,225.76, 43,091.56 and 17,078.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,225.76 : 43,091.56 = 17,078.72 : x
2. Step 2: Convert to fraction form
   31,225.76/43,091.56 = 17,078.72/x
3. Step 3: Cross multiply
   31,225.76x = 43,091.56 × 17,078.72
4. Step 4: Simplify right side
   31,225.76x = 735,948,687.60
5. Step 5: Solve for x
   x = 735,948,687.60/31,225.76
6. Step 6: Final answer
   x = 23,568.64