Finding the Fourth Proportional to 40,930.68, 56,479.76 and 23,025.31

Step by Step Solution

1. Step 1: Write the proportion equation
   40,930.68 : 56,479.76 = 23,025.31 : x
2. Step 2: Convert to fraction form
   40,930.68/56,479.76 = 23,025.31/x
3. Step 3: Cross multiply
   40,930.68x = 56,479.76 × 23,025.31
4. Step 4: Simplify right side
   40,930.68x = 1,300,463,867.60
5. Step 5: Solve for x
   x = 1,300,463,867.60/40,930.68
6. Step 6: Final answer
   x = 31,772.35