Finding the Fourth Proportional to 31,150.42, 42,986.90 and 17,003.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,150.42 : 42,986.90 = 17,003.50 : x
2. Step 2: Convert to fraction form
   31,150.42/42,986.90 = 17,003.50/x
3. Step 3: Cross multiply
   31,150.42x = 42,986.90 × 17,003.50
4. Step 4: Simplify right side
   31,150.42x = 730,927,754.15
5. Step 5: Solve for x
   x = 730,927,754.15/31,150.42
6. Step 6: Final answer
   x = 23,464.46