Finding the Fourth Proportional to 31,208.81, 43,065.93 and 17,777.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,208.81 : 43,065.93 = 17,777.59 : x
2. Step 2: Convert to fraction form
   31,208.81/43,065.93 = 17,777.59/x
3. Step 3: Cross multiply
   31,208.81x = 43,065.93 × 17,777.59
4. Step 4: Simplify right side
   31,208.81x = 765,608,405.51
5. Step 5: Solve for x
   x = 765,608,405.51/31,208.81
6. Step 6: Final answer
   x = 24,531.81