Finding the Fourth Proportional to 31,697.61, 43,743.69 and 17,551.77

Step by Step Solution

1. Step 1: Write the proportion equation
   31,697.61 : 43,743.69 = 17,551.77 : x
2. Step 2: Convert to fraction form
   31,697.61/43,743.69 = 17,551.77/x
3. Step 3: Cross multiply
   31,697.61x = 43,743.69 × 17,551.77
4. Step 4: Simplify right side
   31,697.61x = 767,779,185.83
5. Step 5: Solve for x
   x = 767,779,185.83/31,697.61
6. Step 6: Final answer
   x = 24,221.99