Finding the Fourth Proportional to 31,149.22, 42,985.91 and 17,002.07

Step by Step Solution

1. Step 1: Write the proportion equation
   31,149.22 : 42,985.91 = 17,002.07 : x
2. Step 2: Convert to fraction form
   31,149.22/42,985.91 = 17,002.07/x
3. Step 3: Cross multiply
   31,149.22x = 42,985.91 × 17,002.07
4. Step 4: Simplify right side
   31,149.22x = 730,849,450.83
5. Step 5: Solve for x
   x = 730,849,450.83/31,149.22
6. Step 6: Final answer
   x = 23,462.85