Finding the Fourth Proportional to 31,456.02, 43,408.05 and 17,307.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,456.02 : 43,408.05 = 17,307.30 : x
2. Step 2: Convert to fraction form
   31,456.02/43,408.05 = 17,307.30/x
3. Step 3: Cross multiply
   31,456.02x = 43,408.05 × 17,307.30
4. Step 4: Simplify right side
   31,456.02x = 751,276,143.77
5. Step 5: Solve for x
   x = 751,276,143.77/31,456.02
6. Step 6: Final answer
   x = 23,883.38