Finding the Fourth Proportional to 31,272.89, 43,154.91 and 17,123.00

Step by Step Solution

1. Step 1: Write the proportion equation
   31,272.89 : 43,154.91 = 17,123.00 : x
2. Step 2: Convert to fraction form
   31,272.89/43,154.91 = 17,123.00/x
3. Step 3: Cross multiply
   31,272.89x = 43,154.91 × 17,123.00
4. Step 4: Simplify right side
   31,272.89x = 738,941,308.16
5. Step 5: Solve for x
   x = 738,941,308.16/31,272.89
6. Step 6: Final answer
   x = 23,628.82