Finding the Fourth Proportional to 31,132.18, 42,962.20 and 17,703.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,132.18 : 42,962.20 = 17,703.42 : x
2. Step 2: Convert to fraction form
   31,132.18/42,962.20 = 17,703.42/x
3. Step 3: Cross multiply
   31,132.18x = 42,962.20 × 17,703.42
4. Step 4: Simplify right side
   31,132.18x = 760,577,870.72
5. Step 5: Solve for x
   x = 760,577,870.72/31,132.18
6. Step 6: Final answer
   x = 24,430.60