Finding the Fourth Proportional to 31,356.47, 43,272.27 and 17,209.01

Step by Step Solution

1. Step 1: Write the proportion equation
   31,356.47 : 43,272.27 = 17,209.01 : x
2. Step 2: Convert to fraction form
   31,356.47/43,272.27 = 17,209.01/x
3. Step 3: Cross multiply
   31,356.47x = 43,272.27 × 17,209.01
4. Step 4: Simplify right side
   31,356.47x = 744,672,710.79
5. Step 5: Solve for x
   x = 744,672,710.79/31,356.47
6. Step 6: Final answer
   x = 23,748.62