Finding the Fourth Proportional to 40,887.12, 56,408.24 and 22,978.04

Step by Step Solution

1. Step 1: Write the proportion equation
   40,887.12 : 56,408.24 = 22,978.04 : x
2. Step 2: Convert to fraction form
   40,887.12/56,408.24 = 22,978.04/x
3. Step 3: Cross multiply
   40,887.12x = 56,408.24 × 22,978.04
4. Step 4: Simplify right side
   40,887.12x = 1,296,150,795.05
5. Step 5: Solve for x
   x = 1,296,150,795.05/40,887.12
6. Step 6: Final answer
   x = 31,700.71