Finding the Fourth Proportional to 31,589.72, 43,603.46 and 19,493.89

Step by Step Solution

1. Step 1: Write the proportion equation
   31,589.72 : 43,603.46 = 19,493.89 : x
2. Step 2: Convert to fraction form
   31,589.72/43,603.46 = 19,493.89/x
3. Step 3: Cross multiply
   31,589.72x = 43,603.46 × 19,493.89
4. Step 4: Simplify right side
   31,589.72x = 850,001,151.77
5. Step 5: Solve for x
   x = 850,001,151.77/31,589.72
6. Step 6: Final answer
   x = 26,907.52