Finding the Fourth Proportional to 41,978.79, 57,930.84 and 23,115.96

Step by Step Solution

1. Step 1: Write the proportion equation
   41,978.79 : 57,930.84 = 23,115.96 : x
2. Step 2: Convert to fraction form
   41,978.79/57,930.84 = 23,115.96/x
3. Step 3: Cross multiply
   41,978.79x = 57,930.84 × 23,115.96
4. Step 4: Simplify right side
   41,978.79x = 1,339,126,980.21
5. Step 5: Solve for x
   x = 1,339,126,980.21/41,978.79
6. Step 6: Final answer
   x = 31,900.09