Finding the Fourth Proportional to 31,116, 42,940.08 and 19,944.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,116 : 42,940.08 = 19,944.48 : x
2. Step 2: Convert to fraction form
   31,116/42,940.08 = 19,944.48/x
3. Step 3: Cross multiply
   31,116x = 42,940.08 × 19,944.48
4. Step 4: Simplify right side
   31,116x = 856,417,566.76
5. Step 5: Solve for x
   x = 856,417,566.76/31,116
6. Step 6: Final answer
   x = 27,523.38