Finding the Fourth Proportional to 31,252.69, 43,128.69 and 17,105.53

Step by Step Solution

1. Step 1: Write the proportion equation
   31,252.69 : 43,128.69 = 17,105.53 : x
2. Step 2: Convert to fraction form
   31,252.69/43,128.69 = 17,105.53/x
3. Step 3: Cross multiply
   31,252.69x = 43,128.69 × 17,105.53
4. Step 4: Simplify right side
   31,252.69x = 737,738,885.01
5. Step 5: Solve for x
   x = 737,738,885.01/31,252.69
6. Step 6: Final answer
   x = 23,605.62