Finding the Fourth Proportional to 31,150.76, 42,987.98 and 17,003.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,150.76 : 42,987.98 = 17,003.56 : x
2. Step 2: Convert to fraction form
   31,150.76/42,987.98 = 17,003.56/x
3. Step 3: Cross multiply
   31,150.76x = 42,987.98 × 17,003.56
4. Step 4: Simplify right side
   31,150.76x = 730,948,697.21
5. Step 5: Solve for x
   x = 730,948,697.21/31,150.76
6. Step 6: Final answer
   x = 23,464.88