Finding the Fourth Proportional to 40,864.32, 56,395.17 and 30,774.96

Step by Step Solution

1. Step 1: Write the proportion equation
   40,864.32 : 56,395.17 = 30,774.96 : x
2. Step 2: Convert to fraction form
   40,864.32/56,395.17 = 30,774.96/x
3. Step 3: Cross multiply
   40,864.32x = 56,395.17 × 30,774.96
4. Step 4: Simplify right side
   40,864.32x = 1,735,559,100.94
5. Step 5: Solve for x
   x = 1,735,559,100.94/40,864.32
6. Step 6: Final answer
   x = 42,471.26