Finding the Fourth Proportional to 31,100.21, 42,918.37 and 17,675.93

Step by Step Solution

1. Step 1: Write the proportion equation
   31,100.21 : 42,918.37 = 17,675.93 : x
2. Step 2: Convert to fraction form
   31,100.21/42,918.37 = 17,675.93/x
3. Step 3: Cross multiply
   31,100.21x = 42,918.37 × 17,675.93
4. Step 4: Simplify right side
   31,100.21x = 758,621,845.05
5. Step 5: Solve for x
   x = 758,621,845.05/31,100.21
6. Step 6: Final answer
   x = 24,392.82