Finding the Fourth Proportional to 31,155.42, 42,967.34 and 19,046.73

Step by Step Solution

1. Step 1: Write the proportion equation
   31,155.42 : 42,967.34 = 19,046.73 : x
2. Step 2: Convert to fraction form
   31,155.42/42,967.34 = 19,046.73/x
3. Step 3: Cross multiply
   31,155.42x = 42,967.34 × 19,046.73
4. Step 4: Simplify right side
   31,155.42x = 818,387,138.86
5. Step 5: Solve for x
   x = 818,387,138.86/31,155.42
6. Step 6: Final answer
   x = 26,267.89