Finding the Fourth Proportional to 31,417.31, 43,355.93 and 17,270.15

Step by Step Solution

1. Step 1: Write the proportion equation
   31,417.31 : 43,355.93 = 17,270.15 : x
2. Step 2: Convert to fraction form
   31,417.31/43,355.93 = 17,270.15/x
3. Step 3: Cross multiply
   31,417.31x = 43,355.93 × 17,270.15
4. Step 4: Simplify right side
   31,417.31x = 748,763,111.36
5. Step 5: Solve for x
   x = 748,763,111.36/31,417.31
6. Step 6: Final answer
   x = 23,832.82