Finding the Fourth Proportional to 40,978.24, 56,545.29 and 23,072.79

Step by Step Solution

1. Step 1: Write the proportion equation
   40,978.24 : 56,545.29 = 23,072.79 : x
2. Step 2: Convert to fraction form
   40,978.24/56,545.29 = 23,072.79/x
3. Step 3: Cross multiply
   40,978.24x = 56,545.29 × 23,072.79
4. Step 4: Simplify right side
   40,978.24x = 1,304,657,601.66
5. Step 5: Solve for x
   x = 1,304,657,601.66/40,978.24
6. Step 6: Final answer
   x = 31,837.81