Finding the Fourth Proportional to 23,613.58, 35,235.37 and 21,131.33

Step by Step Solution

1. Step 1: Write the proportion equation
   23,613.58 : 35,235.37 = 21,131.33 : x
2. Step 2: Convert to fraction form
   23,613.58/35,235.37 = 21,131.33/x
3. Step 3: Cross multiply
   23,613.58x = 35,235.37 × 21,131.33
4. Step 4: Simplify right side
   23,613.58x = 744,570,190.43
5. Step 5: Solve for x
   x = 744,570,190.43/23,613.58
6. Step 6: Final answer
   x = 31,531.45