Finding the Fourth Proportional to 42,944.16, 64,356.84 and 31,002.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,944.16 : 64,356.84 = 31,002.72 : x
2. Step 2: Convert to fraction form
   42,944.16/64,356.84 = 31,002.72/x
3. Step 3: Cross multiply
   42,944.16x = 64,356.84 × 31,002.72
4. Step 4: Simplify right side
   42,944.16x = 1,995,237,090.60
5. Step 5: Solve for x
   x = 1,995,237,090.60/42,944.16
6. Step 6: Final answer
   x = 46,461.20