Finding the Fourth Proportional to 31,521.49, 43,499.06 and 17,181.45

Step by Step Solution

1. Step 1: Write the proportion equation
   31,521.49 : 43,499.06 = 17,181.45 : x
2. Step 2: Convert to fraction form
   31,521.49/43,499.06 = 17,181.45/x
3. Step 3: Cross multiply
   31,521.49x = 43,499.06 × 17,181.45
4. Step 4: Simplify right side
   31,521.49x = 747,376,902.96
5. Step 5: Solve for x
   x = 747,376,902.96/31,521.49
6. Step 6: Final answer
   x = 23,710.08