Finding the Fourth Proportional to 31,530.99, 43,513.07 and 17,384.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,530.99 : 43,513.07 = 17,384.34 : x
2. Step 2: Convert to fraction form
   31,530.99/43,513.07 = 17,384.34/x
3. Step 3: Cross multiply
   31,530.99x = 43,513.07 × 17,384.34
4. Step 4: Simplify right side
   31,530.99x = 756,446,003.32
5. Step 5: Solve for x
   x = 756,446,003.32/31,530.99
6. Step 6: Final answer
   x = 23,990.56