Finding the Fourth Proportional to 31,152.33, 42,989.67 and 17,723.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,152.33 : 42,989.67 = 17,723.30 : x
2. Step 2: Convert to fraction form
   31,152.33/42,989.67 = 17,723.30/x
3. Step 3: Cross multiply
   31,152.33x = 42,989.67 × 17,723.30
4. Step 4: Simplify right side
   31,152.33x = 761,918,833.64
5. Step 5: Solve for x
   x = 761,918,833.64/31,152.33
6. Step 6: Final answer
   x = 24,457.84